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Articles 181 - 210 of 281

Full-Text Articles in Pathology

A Surrogate Frax Model For Pakistan, G Naureen, H Johansson, Romaina Iqbal, Lena Jafri, Aysha Habib Khan, Masood Umer, E Liu, L Vandenput, M Lorentzon, N C. Harvey, E V. Mccloskey, J A. Kanis Feb 2021

A Surrogate Frax Model For Pakistan, G Naureen, H Johansson, Romaina Iqbal, Lena Jafri, Aysha Habib Khan, Masood Umer, E Liu, L Vandenput, M Lorentzon, N C. Harvey, E V. Mccloskey, J A. Kanis

Community Health Sciences

A surrogate FRAX® model for Pakistan has been constructed using age-specific hip fracture rates for Indians living in Singapore and age-specific mortality rates from Pakistan.
Introduction: FRAX models are frequently requested for countries with little or no data on the incidence of hip fracture. In such circumstances, the International Society for Clinical Densitometry and International Osteoporosis Foundation have recommended the development of a surrogate FRAX model, based on country-specific mortality data but using fracture data from a country, usually within the region, where fracture rates are considered to be representative of the index country.
Objective: This paper describes the development …


Retiform Hemangioendothelioma: A Case Series And Review Of The Literature, Qurratulain Chundriger, Muhammad Usman Tariq, Shabina Rahim, Jamshid Abdul-Ghafar, Nasir Ud Din Feb 2021

Retiform Hemangioendothelioma: A Case Series And Review Of The Literature, Qurratulain Chundriger, Muhammad Usman Tariq, Shabina Rahim, Jamshid Abdul-Ghafar, Nasir Ud Din

Department of Pathology and Laboratory Medicine

Background: Retiform Hemangioendothelioma (RH) is an extremely rare vascular tumor of intermediate biological behavior, which is prone to local recurrence but rarely shows metastasis to distant sites. It may harbor areas resembling Dabska tumor in some cases and angiosarcoma, which in its well differentiated form may exhibit similar pathological appearance in some areas, making it problematic to rule out a possibility of a malignant diagnosis on a core biopsy. Therefore, complete surgical resection with negative margins is essential for accurate diagnosis and local control.
Results: In our series, two of the three Pakistani cases were in females, with an age …


Antimicrobial Resistance And Covid-19: Intersections And Implications, Gwenan M. Knight, Rebecca E. Glover, C Finn Mcquaid, Ioana D. Olaru, Karin Gallandat, Quentin J. Leclerc, Naomi M. Fuller, Sam J. Willcocks, Rumina Hasan, Esther Van Kleef, Clare Ir Chandler Feb 2021

Antimicrobial Resistance And Covid-19: Intersections And Implications, Gwenan M. Knight, Rebecca E. Glover, C Finn Mcquaid, Ioana D. Olaru, Karin Gallandat, Quentin J. Leclerc, Naomi M. Fuller, Sam J. Willcocks, Rumina Hasan, Esther Van Kleef, Clare Ir Chandler

Department of Pathology and Laboratory Medicine

Before the coronavirus 2019 (COVID-19) pandemic began, antimicrobial resistance (AMR) was among the top priorities for global public health. Already a complex challenge, AMR now needs to be addressed in a changing healthcare landscape. Here, we analyse how changes due to COVID-19 in terms of antimicrobial usage, infection prevention, and health systems affect the emergence, transmission, and burden of AMR. Increased hand hygiene, decreased international travel, and decreased elective hospital procedures may reduce AMR pathogen selection and spread in the short term. However, the opposite effects may be seen if antibiotics are more widely used as standard healthcare pathways break …


Low-Grade Fibromyxoid Sarcoma Incidentally Discovered As An Asymptomatic Mediastinal Mass: A Case Report And Review Of The Literature, Mir Ibrahim Sajid, Sidra Arshad, Jamshid Abdul Ghafar, Saulat Fatimi, Nasir Ud Din Feb 2021

Low-Grade Fibromyxoid Sarcoma Incidentally Discovered As An Asymptomatic Mediastinal Mass: A Case Report And Review Of The Literature, Mir Ibrahim Sajid, Sidra Arshad, Jamshid Abdul Ghafar, Saulat Fatimi, Nasir Ud Din

Medical College Documents

Background: Low-grade fibromyxoid sarcoma (LGFMS) is a rare tumor characterized by bland histological features and aggressive clinical course. The most common anatomic locations of occurrence are the lower extremities, thorax, inguinal area, and upper limbs. Primary mediastinal sarcomas are even rarer. To the best of our knowledge, only seven cases of primary mediastinal LGFMS have been reported in the literature. Here, we report a case of primary mediastinal LGFMS.
Case presentation: A 26-year-old Pakistani man presented with fever and vomiting for the past 2 months. On a routine chest x-ray, a mediastinal mass was incidentally found. Computed tomography (CT) scan …


Eccrine Spiradenoma: A Rare Adnexal Tumour With Atypical Presentation: A Case Report, Adnan Salim, Muhammad Usman Tariq, Sana Zeeshan Feb 2021

Eccrine Spiradenoma: A Rare Adnexal Tumour With Atypical Presentation: A Case Report, Adnan Salim, Muhammad Usman Tariq, Sana Zeeshan

Section of Neurosurgery

First described in 1934, eccrine spiradenoma (ES) is a rare, benign adnexal tumour arising from eccrine sweat glands. It commonly presents as a slow-growing nodule on the upper trunk, and head and neck region, mostly in the age bracket of 15-35 years, with no gender preference. While no established guidelines exist for optimal management of malignant ES, some therapies have been studied. The diagnosis of this entity is extremely important as it can harbour a malignant component with disastrous outcomes which may be missed due to its strong resemblance to benign lesions, such as a papilloma. Here, we present the …


Calcaneal Ultrasound And Its Relation To Dietary And Lifestyle Factors, Anthropometry, And Vitamin D Deficiency In Young Medical Students, Lena Jafri, Hafsa Majid, Sibtain Ahmed, Ghazala Naureen, Aysha Habib Khan Jan 2021

Calcaneal Ultrasound And Its Relation To Dietary And Lifestyle Factors, Anthropometry, And Vitamin D Deficiency In Young Medical Students, Lena Jafri, Hafsa Majid, Sibtain Ahmed, Ghazala Naureen, Aysha Habib Khan

Department of Pathology and Laboratory Medicine

Background: Bone quality and peak bone mass are greatly affected by lifestyle factors. The objective of the study was to investigate the relationships between anthropometry, dietary and caloric intake, body composition measurements, physical activity, and vitamin D status with quantitative ultrasound-based bone parameters among medical students.
Methods: Both male and female medical college students were included in this study. A detailed questionnaire was administered, collecting clinical, dietary, physical activity information, physical examination details, including body mass index (BMI). Body composition (total body fat, total body water, muscle mass, mean visceral fat mass, basal metabolic rate, bone mass using a bioelectrical …


Risk Factors Of Breast Cancer Among Patients In A Tertiary Care Hospitals In Afghanistan: A Case Control Study, Zekrullah Baset, Jamshid Abdul Ghafar, Yasmin Parpio, Ahmed Maseh Haidary Jan 2021

Risk Factors Of Breast Cancer Among Patients In A Tertiary Care Hospitals In Afghanistan: A Case Control Study, Zekrullah Baset, Jamshid Abdul Ghafar, Yasmin Parpio, Ahmed Maseh Haidary

School of Nursing & Midwifery

Background: Breast cancer is the second most common causes of women's death, worldwide. Data on risk factors associated with female breast cancer in the Afghan population is very limited. The aim of our study was to identifying risk factor associated with female breast cancer in Afghanistan.
Methods: A retrospective case-control study was conducted with inclusion of 201 cases and 201 controls. Patient information was collected by interviewing the patient through a structured questionnaire. Histopathological information was collected from the hospital integrated laboratory management system. The data was analyzed by using logistic regression with univariate and multivariable analyses to determine the …


A Multidisciplinary Approach To Triage Patients With Breast Disease During The Covid-19 Pandemic: Experience From A Tertiary Care Center In The Developing World, Abida K. Sattar, Hania Shahzad, Adnan Abdul Jabbar, Azmina Tajdin Valimohammad, Sadaf Khan, Yasmin Vellani, Romana Idrees, Nasir Ali, Imrana Masroor, Humera Saeed, Gulzar S. Lakhani, Nadia Ayoub, Atif Waqar, Muhammad Zia-Ul Islam, Salman Kirmani, Asad Latif, Ather Enam Jan 2021

A Multidisciplinary Approach To Triage Patients With Breast Disease During The Covid-19 Pandemic: Experience From A Tertiary Care Center In The Developing World, Abida K. Sattar, Hania Shahzad, Adnan Abdul Jabbar, Azmina Tajdin Valimohammad, Sadaf Khan, Yasmin Vellani, Romana Idrees, Nasir Ali, Imrana Masroor, Humera Saeed, Gulzar S. Lakhani, Nadia Ayoub, Atif Waqar, Muhammad Zia-Ul Islam, Salman Kirmani, Asad Latif, Ather Enam

Section of General Surgery

Background: The COVID-19 pandemic has created a need to prioritize care because of limitation of resources. Owing to the heterogeneity and high prevalence of breast cancers, the need to prioritize care in this vulnerable population is essential. While various medical societies have published recommendations to manage breast disease during the COVID-19 pandemic, most are focused on the Western world and do not necessarily address the challenges of a resource-limited setting.
Aim: In this article, we describe our institutional approach for prioritizing care for patients presenting with breast disease.
Methods and results: The breast disease management guidelines were developed and approved …


Goblet Cell Carcinoma Of The Appendix: A Case Report On Goblet Cell Carcinoid, Sheliza Kabani, Aubtin Saedi, Austin Lehr, Lina O'Brien Dec 2020

Goblet Cell Carcinoma Of The Appendix: A Case Report On Goblet Cell Carcinoid, Sheliza Kabani, Aubtin Saedi, Austin Lehr, Lina O'Brien

HCA Healthcare Journal of Medicine

Goblet cell carcinoid of the appendix is a rare neoplasm with histological features of both neuroendocrine and adenocarcinomas. The combination of its aggressive behavior, infrequent occurrence, and variable clinical presentation convolutes the management of this tumor. We report the case of a 75-year-old female presenting with acute appendicitis. A laparoscopic appendectomy was performed. The pathology report showed goblet cell carcinoid at the base of the appendix with involvement of the proximal surgical margins. At her postoperative visit, the patient’s pathology report and options for management were reviewed, and the patient agreed to proceed with a right hemicolectomy 8-10 weeks after …


Clinicopathological And Immunohistochemical Study Of 29 Cases Of Solid-Pseudopapillary Neoplasms Of The Pancreas In Patients Under 20 Years Of Age Along With Detailed Review Of Literature, Nasir Ud Din, Shabina Rahim, Jamshid Abdul-Ghafar, Arsalan Ahmed, Zubair Ahmad Dec 2020

Clinicopathological And Immunohistochemical Study Of 29 Cases Of Solid-Pseudopapillary Neoplasms Of The Pancreas In Patients Under 20 Years Of Age Along With Detailed Review Of Literature, Nasir Ud Din, Shabina Rahim, Jamshid Abdul-Ghafar, Arsalan Ahmed, Zubair Ahmad

Department of Pathology and Laboratory Medicine

Background: Pancreatic Solid Pseudopapillary Neoplasms (SPNs) are rare low-grade malignant tumors with a marked preponderance for young females. Objective was to describe the morphology, differential diagnosis, and prognosis of SPNs in patients under 20 years of age and present a detailed review of literature.
Methods: A total of 29 cases in patients under 20 years of age reported as SPN during the period January 2014 to December 2019, were included in the study. These included 19 resection specimens, 4 incision biopsies and 6 cases received as blocks for second opinion. Hematoxylin and eosin (H&E) slides as well as immunohistochemistry (IHC) …


Burden Of Culture Confirmed Enteric Fever Cases In Karachi, Pakistan: Surveillance For Enteric Fever In Asia Project (Seap), 2016-2019, Mohammad Tahir Yousafzai, Seema Irfan, Rozina Thobani, Abdul Momin Kazi, Aneeta Hotwani, Ashraf M. Memon, Khalid Iqbal, Saqib Hamid Qazi, Nasir S. Saddal, Najeeb Rehman, Irum Fatima Dehraj, Mohammed J. Hunzai, Junaid Mehmood, Farah Naz Qamar Dec 2020

Burden Of Culture Confirmed Enteric Fever Cases In Karachi, Pakistan: Surveillance For Enteric Fever In Asia Project (Seap), 2016-2019, Mohammad Tahir Yousafzai, Seema Irfan, Rozina Thobani, Abdul Momin Kazi, Aneeta Hotwani, Ashraf M. Memon, Khalid Iqbal, Saqib Hamid Qazi, Nasir S. Saddal, Najeeb Rehman, Irum Fatima Dehraj, Mohammed J. Hunzai, Junaid Mehmood, Farah Naz Qamar

Department of Paediatrics and Child Health

Background: The Surveillance for Enteric Fever in Asia Project (SEAP) is a multicenter, multicountry study conducted in Pakistan, Nepal, and Bangladesh. The objectives of the study were to characterize disease incidence among patients with enteric fever. We report the burden of enteric fever at selected sites of Karachi, Pakistan.
Methods: During September 2016 to September 2019, prospective surveillance was conducted at inpatient, outpatient, surgical departments, and laboratory networks of Aga Khan University Hospital, Kharadar General Hospital, and surgery units of National Institute of Child Health and Jinnah Postgraduate Medical Centre. Socio-demographic, clinical, and laboratory data were obtained from all suspected …


Antimicrobial Resistance In Typhoidal Salmonella: Surveillance For Enteric Fever In Asia Project, 2016-2019, Farah Naz Qamar, Mohammad Tahir Yousafzai, Irum Fatima Dehraj, Sadia Shakoor, Seema Irfan, Aneeta Hotwani, Muhammad J. Hunzai, Rozina Thobani, Najeeb Rahman, Junaid Mehmood, Ashraf M. Memon Dec 2020

Antimicrobial Resistance In Typhoidal Salmonella: Surveillance For Enteric Fever In Asia Project, 2016-2019, Farah Naz Qamar, Mohammad Tahir Yousafzai, Irum Fatima Dehraj, Sadia Shakoor, Seema Irfan, Aneeta Hotwani, Muhammad J. Hunzai, Rozina Thobani, Najeeb Rahman, Junaid Mehmood, Ashraf M. Memon

Department of Paediatrics and Child Health

Background: Clinicians have limited therapeutic options for enteric as a result of increasing antimicrobial resistance, and therefore typhoid vaccination is recommended as a preventive measure. As a part of the Surveillance for Enteric Fever in Asia Project (SEAP), we investigated the extent measured the burden of antimicrobial resistance (AMR) among confirmed enteric fever cases in Bangladesh, Nepal, and Pakistan.
Methods: From September 2016-September 2019, SEAP recruited study participants of all age groups from its outpatient, inpatient, hospital laboratory, laboratory network, and surgical sites who had a diagnosis of febrile illness that was either suspected or blood culture confirmed for enteric …


Precursor Lymphoblastic Lymphoma In The Extramedullary Tissue: A Rare Manifestation Of Chronic Myeloid Leukemia In Blast Crisis, Huma Mansoori, Maria Faraz, Hira Qadir, Anila Rashid, Maria Ali Oct 2020

Precursor Lymphoblastic Lymphoma In The Extramedullary Tissue: A Rare Manifestation Of Chronic Myeloid Leukemia In Blast Crisis, Huma Mansoori, Maria Faraz, Hira Qadir, Anila Rashid, Maria Ali

Department of Pathology and Laboratory Medicine

Chronic myeloid leukemia (CML) is a myeloproliferative disorder characterized by immature granulocytes in peripheral blood and bone marrow. In 95% of cases, it is always due to the presence of Philadelphia chromosome characterized by the presence of reciprocal translocation between chromosome 9 and 22. However, in 7% -17% of individuals, extramedullary proliferation also occurs, either in skin, lymph nodes, bone or central nervous system (CNS), which could be either myeloid, lymphoid or mixed progenitor in origin. The present case is of a 23-year-old male who presented with lower limb weakness, bowel and urinary incontinence. His complete blood count (CBC) findings …


Localizing An Occult Insulinoma By Selective Calcium Arterial Stimulation Test: First Ever Experience And A New Dimension To Diagnosis In Pakistan, Muhammad Owais Rashid, Sumerah Jabeen, Zareen Kiran,, Khurram Minhas, Muhammad Azeemuddin, Najmul Islam Sep 2020

Localizing An Occult Insulinoma By Selective Calcium Arterial Stimulation Test: First Ever Experience And A New Dimension To Diagnosis In Pakistan, Muhammad Owais Rashid, Sumerah Jabeen, Zareen Kiran,, Khurram Minhas, Muhammad Azeemuddin, Najmul Islam

Section of Diabetes, Endocrinology and Metabolism

Insulinomas are rare, usually benign, solitary tumours accounting for 60% of islet cell tumours. These tumours can be difficult to localize preoperatively due to their small size. We present a challenging case of a 40 year old male with frequent hypoglycaemic spells and endogenous hypoglycaemia who presented as a diagnostic dilemma. Patient had an occult insulinoma with inconclusive CT Abdomen, MRI Abdomen and Octreotide scan. The final localization of the tumour was made by selective arterial calcium stimulation testing (SCAT), done for the first time in Pakistan at Aga Khan University Hospital. This was followed by successful distal pancreatectomy as …


Development, Expansion And Role Of Myeloid-Derived Suppressor Cells In Post-Sepsis Immune Suppression, Tuqa Alkhateeb Aug 2020

Development, Expansion And Role Of Myeloid-Derived Suppressor Cells In Post-Sepsis Immune Suppression, Tuqa Alkhateeb

Electronic Theses and Dissertations

Myeloid-derived suppressor cells (MDSCs) numbers increase significantly in sepsis and are associated with high mortality rates. These myeloid cell precursors promote immunosuppression, especially in the late (post sepsis) stage. However, the mechanisms that underlie MDSC expansion and programming are not completely understood. To investigate these mechanisms, we used a cecal-ligation and puncture (CLP) mouse model of polymicrobial sepsis that progresses from an early/acute proinflammatory phase to a late/chronic immunosuppressive phase. Previous studies in our laboratory showed that microRNA (miR)-21 and miR-181b elevate levels of the transcription factor nuclear factor 1 (NFI-A) that promotes MDSC expansion. We report here that miR-21 …


Impact Of Covid-19 On Laboratory Professionals-A Descriptive Cross Sectional Survey At A Clinical Chemistry Laboratory In A Developing Country, Lena Jafri, Sibtain Ahmed, Imran Siddiqui Jul 2020

Impact Of Covid-19 On Laboratory Professionals-A Descriptive Cross Sectional Survey At A Clinical Chemistry Laboratory In A Developing Country, Lena Jafri, Sibtain Ahmed, Imran Siddiqui

Department of Pathology and Laboratory Medicine

Background: The lab professionals at one end are at increased risk of contracting the infection while on the other end have to deal with the various challenges during the Coronavirus Disease 2019 (COVID-19) outbreak. This survey was undertaken to analyze the lab professionals' perspectives, in terms of the challenges, financial implications, fears, motivation and satisfaction from organizational processes and policies adopted, amid the COVID-19 crisis.
Material & methods: The study utilized a cross-sectional survey design. The survey was administered online via the google docs survey tool from medical laboratory professionals (n = 64) serving at the section of Clinical Chemistry, …


A Rare Case Of Constrictive Pericarditis As Initial Manifestation Of Paediatric Anaplastic Large Cell Lymphoma Requiring Urgent Pericardiectomy, Sara Iqbal, Abdul Ahad Sohail, Narmeen Asif, Muhammad Rahil Khan, Sabeehuddin Siddique, Saulat Fatimi Jul 2020

A Rare Case Of Constrictive Pericarditis As Initial Manifestation Of Paediatric Anaplastic Large Cell Lymphoma Requiring Urgent Pericardiectomy, Sara Iqbal, Abdul Ahad Sohail, Narmeen Asif, Muhammad Rahil Khan, Sabeehuddin Siddique, Saulat Fatimi

Section of Cardiothoracic Surgery

Constrictive pericarditis (CP) is a rare end stage inflammatory disorder affecting both parietal and visceral pericardium leading to a right heart failure. Malignancy is the least common cause of CP. Anaplastic large cell lymphoma (ALCL) accounts for 10-15% of all Non-Hodgkin lymphomas in children. Very few case reports have reported ALCL that is involving the heart and only two have been published involving pericardium but all were managed medically. We present an interesting case of an 11 year old child who presented with an effusive CP that required urgent Pericardiectomy for managing right heart failure. His histopathology was positive for …


The Clinical Features Of Co-Circulating Dengue Viruses And The Absence Of Dengue Hemorrhagic Fever In Pakistan, Erum Khan, Dhani Prakoso, Kehkashan Imtiaz, Faisal Malik, Joveria Farooqi, Maureen T. Long, Kelli L. Barr Jun 2020

The Clinical Features Of Co-Circulating Dengue Viruses And The Absence Of Dengue Hemorrhagic Fever In Pakistan, Erum Khan, Dhani Prakoso, Kehkashan Imtiaz, Faisal Malik, Joveria Farooqi, Maureen T. Long, Kelli L. Barr

Department of Pathology and Laboratory Medicine

Dengue virus (DENV) is the most common and widespread arboviral infection worldwide. Though all four DENV serotypes cocirculate in nature, the clinicopathological framework of these serotypes is undefined in Pakistan. A cross-sectional, observational study was performed to document the circulation of various arboviruses in the Sindh region of Pakistan. Here we describe a population of patients diagnosed with DENV spanning a 2-year period. This study used an orthogonal system of NS1 antigen ELISA followed by RT-PCR for DENV detection and subtyping. A total of 168 NS1 positive patients were evaluated of which 91 patients were serotyped via RT-PCR. There was …


Investigation Of Japanese Encephalitis Virus As A Cause Of Acute Encephalitis In Southern Pakistan, April 2015-January 2018, Tazeen Fatima, Abida Rais, Erum Khan, Susan L. Hills, Trudy V. Chambers, Aneeta Hotwani, Shahida Qureshi, Saad Shafqat, Saima Malik, Farah Qamar, Fatima Mir, Anthony A. Marfin, Anita K. M. Zaidi, Asif Raza Khowaja, Sadia Shakoor Jun 2020

Investigation Of Japanese Encephalitis Virus As A Cause Of Acute Encephalitis In Southern Pakistan, April 2015-January 2018, Tazeen Fatima, Abida Rais, Erum Khan, Susan L. Hills, Trudy V. Chambers, Aneeta Hotwani, Shahida Qureshi, Saad Shafqat, Saima Malik, Farah Qamar, Fatima Mir, Anthony A. Marfin, Anita K. M. Zaidi, Asif Raza Khowaja, Sadia Shakoor

Department of Pathology and Laboratory Medicine

Background: Japanese encephalitis (JE) occurs in fewer than 1% of JE virus (JEV) infections, often with catastrophic sequelae including death and neuropsychiatric disability. JEV transmission in Pakistan was documented in 1980s and 1990s, but recent evidence is lacking. Our objective was to investigate JEV as a cause of acute encephalitis in Pakistan.
Methods: Persons aged ≥1 month with possible JE admitted to two acute care hospitals in Karachi, Pakistan from April 2015 to January 2018 were enrolled. Cerebrospinal fluid (CSF) or serum samples were tested for JEV immunoglobulin M (IgM) using the InBios JE DetectTM assay. Positive or equivocal samples …


A Case Series Of Hyponatremia And Management In Hospitalized Patients, Jake N. Cho, Rebecca Ong, Izuchukwu Nwakoby Mar 2020

A Case Series Of Hyponatremia And Management In Hospitalized Patients, Jake N. Cho, Rebecca Ong, Izuchukwu Nwakoby

Nephrology

No abstract provided.


Non-Tuberculous Mycobacterial Infections-A Neglected And Emerging Problem, Imran Ahmed, Simon Tiberi, Joveria Farooqi, Kauser Jabeen, Dorothy Yeboah-Manu, Giovanni Battista Migliori, Rumina Hasan Mar 2020

Non-Tuberculous Mycobacterial Infections-A Neglected And Emerging Problem, Imran Ahmed, Simon Tiberi, Joveria Farooqi, Kauser Jabeen, Dorothy Yeboah-Manu, Giovanni Battista Migliori, Rumina Hasan

Department of Pathology and Laboratory Medicine

Non-tuberculous mycobacteria (NTM) are ubiquitous dwellers of environmental niches and are an established cause of natural and nosocomial infections. The incidence of NTM infections is rising owing to a growing population of immunocompromised and vulnerable individuals, complex medical and surgical procedures, as well as increased awareness and diagnostic capabilities. The prevalence of different NTM varies between continents, regions, and countries. The true global burden of pulmonary and extrapulmonary disease is unknown and estimates are subject to under and/or over-estimation. Diagnosis requires confirmation by isolation of NTM along with clinical and radiological criteria, which may be suboptimal at all levels. Susceptibility …


Isolated Forefoot Juvenile Xanthogranuloma: Unique Case Study And Treatment In A Pediatric Patient, Brian Derner Dpm, Kristine Hoffman, Amy Storfa Md, Dustin Kruse Dpm, Paul A. Stone Dpm, Facfas Feb 2020

Isolated Forefoot Juvenile Xanthogranuloma: Unique Case Study And Treatment In A Pediatric Patient, Brian Derner Dpm, Kristine Hoffman, Amy Storfa Md, Dustin Kruse Dpm, Paul A. Stone Dpm, Facfas

Podiatry

Juvenile xanthogranulomas (JXG) are a benign histiocytic cell proliferative disorder in early childhood. They most commonly present within the first two years of life with papular or nodular changes to the skin on the head, neck or upper trunk. Xanthogranulomas are mostly self-limiting, can be singular or multiple, and rarely can infer a systemic disease process1. The purpose of this study was to publish a unique finding of an extra-tendinous solitary mass in an otherwise healthy 17-year old, with surgical and medical treatment after diagnosis.


Tick-Borne Infections In New Hampshire: An Evaluation Of The Diagnostic Process In A Local Patient Population, Katherine Anderson Jan 2020

Tick-Borne Infections In New Hampshire: An Evaluation Of The Diagnostic Process In A Local Patient Population, Katherine Anderson

Honors Theses and Capstones

Overall, approximately 95 percent of reported cases of vector-borne disease were associated with ticks, making these the most medically important group of arthropods in the United States.1 Despite the prevalence of tick-borne infections, the process for the diagnosis of this condition is not well studied. This study aims to analyze data from a pool of 100 patients who underwent testing for tick-borne disease in the same institution in Dover, New Hampshire during the most recent peak tick season of 2019. Information utilized in this study included: patient age, sex, location of testing (inpatient versus outpatient), diagnostic testing methods used …


Use Of Pefloxacin As A Surrogate Marker To Detect Ciprofloxacin Susceptibility In Salmonella Enterica Serotypes Typhi And Paratyphi A, Safia Moin, Mohammad Zeeshan, Sidra Laiq, Ahmed Raheem, Afia Zafar Jan 2020

Use Of Pefloxacin As A Surrogate Marker To Detect Ciprofloxacin Susceptibility In Salmonella Enterica Serotypes Typhi And Paratyphi A, Safia Moin, Mohammad Zeeshan, Sidra Laiq, Ahmed Raheem, Afia Zafar

Department of Pathology and Laboratory Medicine

Objective: To determine the use of pefloxacin as a surrogate marker to detect fluoroquinolone (ciprofloxacin) susceptibility against Salmonella enterica serotypes Typhi and Paratyphi A.
Methods: The prospective, descriptive cross-sectional study was conducted at the Aga Khan University Hospital, Karachi, from September 2016 to March 2018, and comprised Salmonella Typhi and Paratyphi A isolates of blood cultures. Disk susceptibility tests and broth microdilution to test minimum inhibitory concentration were performed as per standard guidelines. Data was analysed using SPSS 21.
Results: Of the 138 isolates, 91(66%) were intermediate resistant to ciprofloxacin but were resistant to pefloxacin, 42(30%) were resistant to both …


Nearly Complete Genome Sequences Of 17 Enterovirus D68 Strains From Kansas City, Missouri, 2018, Suman B. Pakala, Yi Tan, Ferdaus Hassan, Annie Mai, Robert H. Markowitz, Meghan H. Shilts, Seesandra V. Rajagopala, Rangaraj Selvarangan, Suman R. Das Nov 2019

Nearly Complete Genome Sequences Of 17 Enterovirus D68 Strains From Kansas City, Missouri, 2018, Suman B. Pakala, Yi Tan, Ferdaus Hassan, Annie Mai, Robert H. Markowitz, Meghan H. Shilts, Seesandra V. Rajagopala, Rangaraj Selvarangan, Suman R. Das

Manuscripts, Articles, Book Chapters and Other Papers

Here, we report 17 nearly complete genome sequences of enterovirus D68 (EV-D68) isolated from Kansas City, MO, in 2018. Phylogenetic analysis suggests that these strains belong to subclade B3, similar to the ones that caused the 2016 epidemics in the United States but different from the 2014 outbreak B1 strains.


Neuroblastoma In Adolescents And Children Older Than 10 Years: Unusual Clinicopathologic And Biologic Features, Laura Mccarthy, Katherine Chastain, Terrie Flatt, Eugenio Taboada, Robert E. Garola, John Herriges, Linda D. Cooley, Atif Ahmed May 2019

Neuroblastoma In Adolescents And Children Older Than 10 Years: Unusual Clinicopathologic And Biologic Features, Laura Mccarthy, Katherine Chastain, Terrie Flatt, Eugenio Taboada, Robert E. Garola, John Herriges, Linda D. Cooley, Atif Ahmed

Posters

This poster describes four cases of neuroblastoma diagnosed since 2008 in children greater than 10 years and presents their clinical, histologic and biologic features, emphasizing unusual clinicopathologic characteristics and the role of DNA microarray analysis and Next Generation Sequencing in their management.


Assessing The Criteria For Definition Of Perimembranous Ventricular Septal Defects In Light Of The Search For Consensus, Justin T. Tretter, Vi-Hue Tran, Seth Gray, Hieu Ta, Rohit S. Loomba, William O'Connor, Diane E. Spicer, Andrew C. Cook, Robert H. Anderson Apr 2019

Assessing The Criteria For Definition Of Perimembranous Ventricular Septal Defects In Light Of The Search For Consensus, Justin T. Tretter, Vi-Hue Tran, Seth Gray, Hieu Ta, Rohit S. Loomba, William O'Connor, Diane E. Spicer, Andrew C. Cook, Robert H. Anderson

Pathology and Laboratory Medicine Faculty Publications

Background: Discussions continue as to whether ventricular septal defects are best categorized according to their right ventricular geography or their borders. This is especially true when considering the perimembranous defect. Our aim, therefore, was to establish the phenotypic feature of the perimembranous defect, and to establish the ease of distinguishing its geographical variants.

Methods and results: We assessed unrepaired isolated perimembranous ventricular defects from six historic archives, subcategorizing them using the ICD-11 coding system. We identified 365 defects, of which 94 (26%) were deemed to open centrally, 168 (46%) to open to the outlet, and 84 (23%) to the inlet …


Seroepidemiology Of Parechovirus A3 Neutralizing Antibodies, Australia, The Netherlands, And United States, Eveliina Karelehto, Lieke Brouwer, Kimberley Benschop, Jen Kok, Kerri Basile, Brendan Mcmullan, William Rawlinson, Julian Druce, Suellen Nicholson, Rangaraj Selvarangan, Christopher J. Harrison, Kamani Lankachandra, Hetty Van Eijk, Gerrit Koen, Menno De Jong, Dasja Pajkrt, Katja C. Wolthers Jan 2019

Seroepidemiology Of Parechovirus A3 Neutralizing Antibodies, Australia, The Netherlands, And United States, Eveliina Karelehto, Lieke Brouwer, Kimberley Benschop, Jen Kok, Kerri Basile, Brendan Mcmullan, William Rawlinson, Julian Druce, Suellen Nicholson, Rangaraj Selvarangan, Christopher J. Harrison, Kamani Lankachandra, Hetty Van Eijk, Gerrit Koen, Menno De Jong, Dasja Pajkrt, Katja C. Wolthers

Manuscripts, Articles, Book Chapters and Other Papers

© 2018, Centers for Disease Control and Prevention (CDC). All rights reserved. Recent parechovirus A3 (PeV-A3) outbreaks in Australia suggest lower population immunity compared with regions that have endemic PeV-A3 circulation. A serosurvey among populations in the Netherlands, the United States, and Australia before and after the 2013 Australia outbreak showed high PeV-A3 neutralizing antibody prevalence across all regions and time periods, indicating widespread circulation.


Dichotomous Scoring Of Tdp-43 Proteinopathy From Specific Brain Regions In 27 Academic Research Centers: Associations With Alzheimer's Disease And Cerebrovascular Disease Pathologies, Yuriko Katsumata, David W. Fardo, Walter A. Kukull, Peter T. Nelson Dec 2018

Dichotomous Scoring Of Tdp-43 Proteinopathy From Specific Brain Regions In 27 Academic Research Centers: Associations With Alzheimer's Disease And Cerebrovascular Disease Pathologies, Yuriko Katsumata, David W. Fardo, Walter A. Kukull, Peter T. Nelson

Biostatistics Faculty Publications

TAR-DNA binding protein 43 (TDP-43) proteinopathy is a common brain pathology in elderly persons, but much remains to be learned about this high-morbidity condition. Published stage-based systems for operationalizing disease severity rely on the involvement (presence/absence) of pathology in specific anatomic regions. To examine the comorbidities associated with TDP-43 pathology in aged individuals, we studied data from the National Alzheimer’s Coordinating Center (NACC) Neuropathology Data Set. Data were analyzed from 929 included subjects with available TDP-43 pathology information, sourced from 27 different American Alzheimer’s Disease Centers (ADCs). Cases with relatively unusual diseases including autopsy-proven frontotemporal lobar degeneration (FTLD-TDP or FTLD-tau) …


Myocardial Ischemia Reperfusion Injury: Apoptotic, Inflammatory And Oxidative Stress Role Of Galectin-3, Suhail Al-Salam, Satwat Hashmi Oct 2018

Myocardial Ischemia Reperfusion Injury: Apoptotic, Inflammatory And Oxidative Stress Role Of Galectin-3, Suhail Al-Salam, Satwat Hashmi

Department of Biological & Biomedical Sciences

Background/aims: Myocardial reperfusion has the potential to salvage the ischemic myocardium after a period of coronary occlusion. Reperfusion, however, can cause a wide spectrum of deleterious effects. Galectin-3 (GAL-3), a beta galactoside binding lectin, is closely associated with myocardial infarction (MI), myocardial fibrosis and heart failure. In our study, we investigated its role in ischemia-reperfusion injuries (IR) as this phenomenon is extremely relevant to the early intervention after acute MI.
Methods: C57B6/J wild type (WT) mice and GAL-3 knockout (KO) mice were used for murine model of IR injury in the heart where a period of 30 minutes ischemia was …