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Articles 1 - 30 of 49

Full-Text Articles in Gastroenterology

Sebaceous Gland Heterotopia Of The Esophagus: A Rare Incidental Finding During Upper Endoscopy, Samuel Ramos, Margaret-Anne Huntley, Eric Vargas, Jignesh Parikh, Vania Zayat Aug 2026

Sebaceous Gland Heterotopia Of The Esophagus: A Rare Incidental Finding During Upper Endoscopy, Samuel Ramos, Margaret-Anne Huntley, Eric Vargas, Jignesh Parikh, Vania Zayat

HCA Healthcare Journal of Medicine

Esophageal heterotopic sebaceous glands (EHSG) are an extremely rare finding within the esophageal epithelium. These glands are typically benign, presenting as small, yellow-white plaques or lesions observed on endoscopy, often in the middle third of the esophagus. Esophageal heterotopic sebaceous glands are generally asymptomatic, and surveillance is not required. While their origin is unclear, proposed mechanisms include metaplastic transformation and congenital development. Recognition and histologic confirmation are essential to distinguish EHSG from other esophageal lesions and to avoid unnecessary interventions. We report the case of a 55-year-old man in whom multiple diminutive plaques were identified in the mid-esophagus during esophagogastroduodenoscopy …


Molecular Tumor Testing On Colorectal Adenocarcinoma Specimens In A Large Community-Based Healthcare System, David H. Kruchko, Sareena Ali, Mahbubul Hasan, Madeline Sesselmann, Imad Almanaseer, Eli D. Ehrenpreis Oct 2024

Molecular Tumor Testing On Colorectal Adenocarcinoma Specimens In A Large Community-Based Healthcare System, David H. Kruchko, Sareena Ali, Mahbubul Hasan, Madeline Sesselmann, Imad Almanaseer, Eli D. Ehrenpreis

Journal of Patient-Centered Research and Reviews

Purpose: This study aimed to describe the adherence of National Comprehensive Cancer Network guidelines to perform genetic screening for all colorectal cancer (CRC) specimens with molecular tumor testing, eg, immunohistochemical (IHC) testing, in a large community-based healthcare setting. The study also identified trends involving characteristics of CRC, individual reporting physician, and physician location and examined the potential impact of these trends on the performance of molecular tumor testing.

Methods: This was a retrospective, multi-center study using a centralized pathology database to assess molecular testing on CRC specimens. The primary endpoint was whether tumor testing of a CRC specimen was performed. …


Steatotic Mass Secondary To Heterozygous Hemochromatosis, A Rare Case Of Biliary Obstruction, Saddam Zaidi Md, Cheng-Hung Tai, Joanna Gibson Md, Phd, Caroline Loeser Oct 2024

Steatotic Mass Secondary To Heterozygous Hemochromatosis, A Rare Case Of Biliary Obstruction, Saddam Zaidi Md, Cheng-Hung Tai, Joanna Gibson Md, Phd, Caroline Loeser

Posters

Heterozygous Hemochromatosis (HH) is a genetic disorder that increases iron absorption. Carriers of the C282Y HFE gene mutation have a higher risk of developing nonalcoholic fatty liver disease (NAFLD). Research indicates a significant association between liver fat accumulation (steatosis) and fibrosis in HH. This case involves a 31-year-old male with HH and an uncommon biliary obstruction caused by focal fat infiltration.


Amyloidosis: A Rare Cause Of Pan-Dysmotility, Rofinna Johnkennedy Md, Mph, Cheng-Hung Tai, Alexa Plato Md, Department Of Medicine, Oct 2024

Amyloidosis: A Rare Cause Of Pan-Dysmotility, Rofinna Johnkennedy Md, Mph, Cheng-Hung Tai, Alexa Plato Md, Department Of Medicine,

Posters

Amyloidosis is a rare systemic infiltrative disease, with a prevalence estimated to be 6-10 cases per million person-years. It involves the extracellular deposition of beta-sheet fibrillar protein and can manifest in any organ system in the body. Diagnosis of gastrointestinal involvement of amyloidosis can be difficult, given its nonspecific symptoms including abdominal pain, nausea, dysphagia, and diarrhea.


Targeting Ribosome Biogenesis Is A Novel Approach For The Management Of Pancreatic Cancer, Mudassier Ahmad, Haider Ahsan, Carlos Perez, Muhammad Bangash, Andrew Massey, Emmanuel Anning, Manish Tripathi, Dae Kim, Subhash C. Chauhan, Bilal Bin Hafeez Sep 2024

Targeting Ribosome Biogenesis Is A Novel Approach For The Management Of Pancreatic Cancer, Mudassier Ahmad, Haider Ahsan, Carlos Perez, Muhammad Bangash, Andrew Massey, Emmanuel Anning, Manish Tripathi, Dae Kim, Subhash C. Chauhan, Bilal Bin Hafeez

Research Colloquium

Pancreatic ductal adenocarcinoma is the third leading cause of cancer-related deaths in the United States with limited therapeutic options available. Gemcitabine, a deoxycytidine nucleoside analog is currently considered the most effective therapy for PanCa. However, it shows only a marginal survival benefit of six months. Aberrant ribosome biogenesis occurs in most tumor types. We observed that PanCa cells are addicted to ribosome biogenesis, which supports their highly aggressive metastatic phenotypes. Thus, strategically targeting ribosome biogenesis process could be one of the ideal strategies for the prevention and treatment of PanCa. In this study, we elucidated the molecular mechanisms of POLR1A …


Head And Neck Metastasis Of Colorectal Adenocarcinoma: A Case Report And Literature Review, Taha Al Hassan, Jessica Flores, Adam Bender-Heine, Rachel A. Giese Sep 2024

Head And Neck Metastasis Of Colorectal Adenocarcinoma: A Case Report And Literature Review, Taha Al Hassan, Jessica Flores, Adam Bender-Heine, Rachel A. Giese

Research Colloquium

Introduction/Background: Colorectal Adenocarcinoma (CRC) metastasis is found in approximately 1 in 5 patients diagnosed with CRC and frequently spreads to the liver, lungs, peritoneum, bone, and nervous system. There are several subtypes of adenocarcinoma but the single most associated with distant metastasis, multiple sites of metastasis, and poorer survival is the signet-ring cell carcinoma variant. We present an unusual case of a head and neck mass demonstrating immunohistochemical staining specific for colorectal origin in a patient with a history of mucinous adenocarcinoma of the colon.

Case Presentation: A 53-year-old female was referred for a left cervical neck mass associated with …


Crohn's Disease-Associated Granulomatous Pancreatitis With Exocrine Pancreatic Insufficiency, Anthony A Xu, Sara Vincent, Samuel Ma, Vanessa Catania, Neda Zarrin-Khameh Aug 2024

Crohn's Disease-Associated Granulomatous Pancreatitis With Exocrine Pancreatic Insufficiency, Anthony A Xu, Sara Vincent, Samuel Ma, Vanessa Catania, Neda Zarrin-Khameh

Faculty, Staff and Students Publications

Extraintestinal manifestations of inflammatory bowel disease occur commonly and can lead to considerable morbidity. Pancreatic manifestations of inflammatory bowel disease have been reported to be more common in Crohn's disease (CD) than ulcerative colitis. We report a case of granulomatous inflammation in the body of the pancreas with exocrine pancreatic insufficiency, which prompted a diagnosis switch from ulcerative colitis to CD. This is of interest to readers to remind them that pancreatic manifestations can occur and are more common in CD.


Developing The Openflexure Microscope Towards Medical Use: Technical And Social Challenges Of Developing Globally Accessible Hardware For Healthcare, Joe Knapper, Freya Whiteford, Daniel Rosen, William Wadsworth, Julian Stirling, Catherine Mkindi, Joram Mduda, Valerian L Sanga, Paul T Nyakyi, Thomas Hervé Mboa Nkoudou, Elisée Jafsia, Stephane Fadanka, Kelsey Hummel, Sharmila Anandasabapathy, Richard Bowman Jul 2024

Developing The Openflexure Microscope Towards Medical Use: Technical And Social Challenges Of Developing Globally Accessible Hardware For Healthcare, Joe Knapper, Freya Whiteford, Daniel Rosen, William Wadsworth, Julian Stirling, Catherine Mkindi, Joram Mduda, Valerian L Sanga, Paul T Nyakyi, Thomas Hervé Mboa Nkoudou, Elisée Jafsia, Stephane Fadanka, Kelsey Hummel, Sharmila Anandasabapathy, Richard Bowman

Faculty, Staff and Students Publications

The OpenFlexure Microscope is an accessible, three-dimensional-printed robotic microscope, with sufficient image quality to resolve diagnostic features including parasites and cancerous cells. As access to lab-grade microscopes is a major challenge in global healthcare, the OpenFlexure Microscope has been developed to be manufactured, maintained and used in remote environments, supporting point-of-care diagnosis. The steps taken in transforming the hardware and software from an academic prototype towards an accepted medical device include addressing technical and social challenges, and are key for any innovation targeting improved effectiveness in low-resource healthcare. This article is part of the Theo Murphy meeting issue 'Open, reproducible …


Considering The Histologic And Anatomic Features Of Pancreatic Heterotopia In Patient Disease Manifestation, Yeseena Alli B.S., Kelly Brenan M.D. Apr 2024

Considering The Histologic And Anatomic Features Of Pancreatic Heterotopia In Patient Disease Manifestation, Yeseena Alli B.S., Kelly Brenan M.D.

Tower Health Research Day

No abstract provided.


The Utility Of Interventional Anesthesia, Kylie Daguio, Kiley Jackson, Samantha Boever, Andrew Chang, James Keane, Leonard B. Goldstein Mar 2024

The Utility Of Interventional Anesthesia, Kylie Daguio, Kiley Jackson, Samantha Boever, Andrew Chang, James Keane, Leonard B. Goldstein

SOMA Faculty Publications

no abstract


An Unusual Case Of Microcystic Serous Cystadenoma In A 19-Year-Old Male Patient, Jamie Lee Aldakkour, Alvin Boyd Newman-Caro, Ashley Henning Feb 2024

An Unusual Case Of Microcystic Serous Cystadenoma In A 19-Year-Old Male Patient, Jamie Lee Aldakkour, Alvin Boyd Newman-Caro, Ashley Henning

HCA Healthcare Journal of Medicine

Introduction

Microcystic serous cystadenomas are uncommon, benign neoplasms rarely known to progress to malignancy. They are typically asymptomatic and inadvertently discovered during imaging for another unrelated condition. When discovered, they are commonly found in females over 60 years of age.

Case Presentation

In this case report, we examine a unique presentation of a serous cystadenoma discovered when a 19-year-old male presented with symptoms of abdominal pain, nausea, and vomiting.

Conclusion

Previous studies on serous cystadenomas in a younger male demographic are rare. Therefore, this study will provide additional insight into the signs, symptoms, diagnosis, and management of cystadenomas in young …


Challenges In Diagnosing Hepatic Epithelioid Hemangioendothelioma: A Case Series, Aratara Nutcharoen, Elliott Beard, Anupa Thirmiya, Omar Taher, Jacob Adams, Mark Mortensen, John Pelham Feb 2024

Challenges In Diagnosing Hepatic Epithelioid Hemangioendothelioma: A Case Series, Aratara Nutcharoen, Elliott Beard, Anupa Thirmiya, Omar Taher, Jacob Adams, Mark Mortensen, John Pelham

Annual Research Symposium

Challenges in Diagnosing Hepatic Epithelioid Hemangioendothelioma


Advancing Virtual At-Home Care For Community Health Center Patients Using Patient Self-Care Tools, Technology, And Education [Letter], Cheryl Modica, Joy H. Lewis, Curtis Bay Feb 2024

Advancing Virtual At-Home Care For Community Health Center Patients Using Patient Self-Care Tools, Technology, And Education [Letter], Cheryl Modica, Joy H. Lewis, Curtis Bay

SOMA Faculty Publications

Abstract

Introduction

Health centers are community-based, patient directed primary care providers that offer accessible, high-quality primary care within medically underserved communities. Screening for cancer and managing complex chronic conditions such as diabetes, hypertension, obesity, and depression are vital services for the vulnerable populations seen by community health centers. Delivering care for complex chronic conditions and preventive services using virtual models that integrate self-care tools and technology is an important approach to increasing access for hard-to-reach patients served by health centers.

Objective

This study aimed to explore the use of a virtual care model, applied using a systems approach and patient-driven …


Genetic Variation Between Small Bowel And Colon-Predominant Crohn's Disease, Halee Patel, R Alan Harris, Justin H Qian, Numan Oezguen, Ashleigh Watson, Reka G Szigeti, Stanley Cho, Wenly Ruan, Savini Britto, Antone Opekun, Geoffrey Preidis, Richard Kellermayer Jan 2024

Genetic Variation Between Small Bowel And Colon-Predominant Crohn's Disease, Halee Patel, R Alan Harris, Justin H Qian, Numan Oezguen, Ashleigh Watson, Reka G Szigeti, Stanley Cho, Wenly Ruan, Savini Britto, Antone Opekun, Geoffrey Preidis, Richard Kellermayer

Faculty, Staff and Students Publications

No abstract provided.


Highly Invasive Biliary Cancer Presenting As Multiple Extrabiliary Lesions Masquerading As Abscesses, Alexander Lu, Alireza Mojtahedi, Lukman Cheraghvandi, David Wynne, Neda Zarrin-Khameh, Mohammad Ghasemi Rad Nov 2023

Highly Invasive Biliary Cancer Presenting As Multiple Extrabiliary Lesions Masquerading As Abscesses, Alexander Lu, Alireza Mojtahedi, Lukman Cheraghvandi, David Wynne, Neda Zarrin-Khameh, Mohammad Ghasemi Rad

Faculty, Staff and Students Publications

Carcinosarcomas of the biliary tract are an extremely rare type of malignancy and may be low on a differential when presenting as multiple metastatic masses. In this case report, we report a case of a female who presented with an aggressive late-stage disease whose initial workup did not indicate a malignant process. Further complicating her care, biopsy samples taken from extra-hepatic masses were culture-positive for Lactobacillus rhamnosu. Given the late stage of the patient’s disease, hospice care was initiated. The patient passed away four months after the initial presentation.


Fine Needle Aspiration Of Pancreatic Lesions Focusing On Secondary Tumors With Emphasis Of Metastatic Breast Cancer: A Clinicopathological Study With Follow-Up, Maria Yanqing Chen, Neda Zarrin-Khameh, Ya Xu Mar 2023

Fine Needle Aspiration Of Pancreatic Lesions Focusing On Secondary Tumors With Emphasis Of Metastatic Breast Cancer: A Clinicopathological Study With Follow-Up, Maria Yanqing Chen, Neda Zarrin-Khameh, Ya Xu

Faculty, Staff and Students Publications

BACKGROUND: The data on metastatic tumors to the pancreas diagnosed by fine needle aspiration (FNA) biopsy is limited. We report our experience of FNA of primary and secondary pancreatic tumors emphasizing metastatic breast cancer in the pancreas.

METHOD: Total 274 cases of pancreatic FNA in 10 years were retrospectively reviewed. Literature review of metastatic breast cancers to the pancreas was performed.

RESULTS: Out of the 274 cases, 7 (7/274, 2.6%) cases were non-diagnostic, 46 (46/274, 16.8%) cases were negative for malignancy, and 40 (40/274, 14.6%) cases were under the category of atypical cells. There were 133 (133/274, 48.5%) cases diagnosed …


Acute Systemic Infection-Associated Russell Body Gastroesophagitis: A Case Report And Literature Review, Elizaveta Flerova, Susan Inniss, Nneamaka Nwaoduah, Richard P. Denicola, Jialing Huang Feb 2023

Acute Systemic Infection-Associated Russell Body Gastroesophagitis: A Case Report And Literature Review, Elizaveta Flerova, Susan Inniss, Nneamaka Nwaoduah, Richard P. Denicola, Jialing Huang

Division of Gastroenterology and Hepatology Faculty Papers

Russell body esophagitis/gastritis (RBG) is a rare gastrointestinal inflammatory condition characterized by accumulation of plasma cells containing dense eosinophilic cytoplasmic inclusions, i.e., Russell bodies. Herein, we report a case of RBG in a patient with a systemic inflammation background. A 61-year-old female presented with oral infection. Upper gastrointestinal endoscopy revealed patchy salmon-colored esophageal mucosa proximally to the gastroesophageal junction, suggestive of “Barrett’s esophagus”. Histologic examination of the biopsy tissue from the lower esophagus showed diffuse lymphoplasmacytic infiltration with abundant admixed enlarged plasma cells (Mott cells) containing bright eosinophilic, round, dense, homogenous inclusions (Russell bodies) in cytoplasm. Immunohistochemical study demonstrated membranous …


Impact Of Gastrointestinal Polymerase Chain Reaction Panels On Antibiotic Utilization In Hospitalized Adult Patients, Gillean A Kelly, Roumen Iordanov, Alex Franklin, Amna Ahmed, Krithika Srinivasan, Jesica Hayon, Todd Lasco, Rosie Amini, Sabra Shay, Prathit A Kulkarni, Mayar Al Mohajer Jan 2023

Impact Of Gastrointestinal Polymerase Chain Reaction Panels On Antibiotic Utilization In Hospitalized Adult Patients, Gillean A Kelly, Roumen Iordanov, Alex Franklin, Amna Ahmed, Krithika Srinivasan, Jesica Hayon, Todd Lasco, Rosie Amini, Sabra Shay, Prathit A Kulkarni, Mayar Al Mohajer

Faculty, Staff and Students Publications

Multiplex stool polymerase chain reaction (PCR) panels offer rapid comprehensive testing for patients with infectious diarrhea. We compared antibiotic utilization among hospitalized patients with suspected infectious diarrhea who underwent diagnostic testing with either a stool culture or stool PCR panel. No significant differences in antibiotic utilization were identified.


Diagnostic Accuracy Of Artificial Intelligence For Detecting Gastrointestinal Luminal Pathologies: A Systematic Review And Meta-Analysis, Om Parkash, Asra Tus Saleha Siddiqui, Uswa Jiwani, Fahad Rind, Zahra Ali Padhani, Arjumand Rizvi, Zahra Hoodbhoy, Jai K. Das Nov 2022

Diagnostic Accuracy Of Artificial Intelligence For Detecting Gastrointestinal Luminal Pathologies: A Systematic Review And Meta-Analysis, Om Parkash, Asra Tus Saleha Siddiqui, Uswa Jiwani, Fahad Rind, Zahra Ali Padhani, Arjumand Rizvi, Zahra Hoodbhoy, Jai K. Das

Section of Gastroenterology

Background: Artificial Intelligence (AI) holds considerable promise for diagnostics in the field of gastroenterology. This systematic review and meta-analysis aims to assess the diagnostic accuracy of AI models compared with the gold standard of experts and histopathology for the diagnosis of various gastrointestinal (GI) luminal pathologies including polyps, neoplasms, and inflammatory bowel disease.
Methods: We searched PubMed, CINAHL, Wiley Cochrane Library, and Web of Science electronic databases to identify studies assessing the diagnostic performance of AI models for GI luminal pathologies. We extracted binary diagnostic accuracy data and constructed contingency tables to derive the outcomes of interest: sensitivity and specificity. …


Maternal Lactobacillus Reuteri Supplementation Shifts The Intestinal Microbiome In Mice And Provides Protection From Experimental Colitis In Female Offspring, Mahesh Krishna, Melinda Engevik, Karen Queliza, Savini Britto, Rajesh Shah, Wenly Ruan, Hongtao Wang, James Versalovic, Richard Kellermayer Feb 2022

Maternal Lactobacillus Reuteri Supplementation Shifts The Intestinal Microbiome In Mice And Provides Protection From Experimental Colitis In Female Offspring, Mahesh Krishna, Melinda Engevik, Karen Queliza, Savini Britto, Rajesh Shah, Wenly Ruan, Hongtao Wang, James Versalovic, Richard Kellermayer

Faculty, Staff and Students Publications

The purpose of our experiment was to explore how stochastic (inter-individual variation) gut microbiome composition may link to inflammatory bowel disease (IBD) susceptibility and guide the development of a perinatal preventative probiotic. Dextran sodium sulfate (DSS) was introduced to C57BL/BJ mice to induce acute colitis as a model of IBD. Potentially protective bacteria were identified using a discovery-validation cohort approach toward stochastic DSS susceptibility.


Fecal Microbiota Transplantation Commonly Failed In Children With Co-Morbidities, Richard Kellermayer, Qinglong Wu, Dorottya Nagy-Szakal, Karen Queliza, Faith D Ihekweazu, Claire E Bocchini, Abria R Magee, Numan Oezguen, Jennifer K Spinler, Emily B Hollister, Robert J Shulman, James Versalovic, Ruth Ann Luna, Tor C Savidge Feb 2022

Fecal Microbiota Transplantation Commonly Failed In Children With Co-Morbidities, Richard Kellermayer, Qinglong Wu, Dorottya Nagy-Szakal, Karen Queliza, Faith D Ihekweazu, Claire E Bocchini, Abria R Magee, Numan Oezguen, Jennifer K Spinler, Emily B Hollister, Robert J Shulman, James Versalovic, Ruth Ann Luna, Tor C Savidge

Faculty, Staff and Students Publications

OBJECTIVES: Fecal microbiota transplantation (FMT) is arguably the most effective treatment for recurrent Clostridioides difficile infection (rCDI). Clinical reports on pediatric FMT have not systematically evaluated microbiome restoration in patients with co-morbidities. Here, we determined whether FMT recipient age and underlying co-morbidity influenced clinical outcomes and microbiome restoration when treated from shared fecal donor sources.

METHODS: Eighteen rCDI patients participating in a single-center, open-label prospective cohort study received fecal preparation from a self-designated (single case) or two universal donors. Twelve age-matched healthy children and four pediatric ulcerative colitis (UC) cases from an independent serial FMT trial, but with a shared …


Durable Response To Brentuximab Vedotin Plus Cyclophosphamide, Doxorubicin, And Prednisone (Bv-Chp) In A Patient With Cd30-Positive Ptcl Arising As A Post-Transplant Lymphoproliferative Disorder (Ptld), Jennifer Hong, William T Johnson, Saritha Kartan, Anitha S Gonsalves, Jonathan M. Fenkel, Jerald Z. Gong, Pierluigi Porcu Dec 2021

Durable Response To Brentuximab Vedotin Plus Cyclophosphamide, Doxorubicin, And Prednisone (Bv-Chp) In A Patient With Cd30-Positive Ptcl Arising As A Post-Transplant Lymphoproliferative Disorder (Ptld), Jennifer Hong, William T Johnson, Saritha Kartan, Anitha S Gonsalves, Jonathan M. Fenkel, Jerald Z. Gong, Pierluigi Porcu

Department of Medical Oncology Faculty Papers

T-cell PTLDs are lymphoid proliferations that develop in recipients of SOT or allogeneic HSCT. They carry an extremely poor prognosis with a reported median survival of only 6 months. The infrequency with which they are encountered makes treatment a challenge due to the lack of prospective trials to guide management. The significantly higher risk of morbidity and mortality in T-cell PTLD, compared to B-cell PTLD, underscores the challenge of treating these patients and the need for new therapeutic options. Brentuximab vedotin, an ADC targeting CD30, is FDA-approved in combination with CHP as front-line treatment for patients with CD30 expressing PTCL. …


Effect Of 3 Days Of Oral Azithromycin On Young Children With Acute Diarrhea In Low-Resource Settings: A Randomized Clinical Trial, Antibiotics For Children With Diarrhea (Abcd) Study Group, Tahmeed Ahmed, Farah Naz Qamar, Mohammad Tahir Yousafzai, Shahida Qureshi, Sadia Shakoor, Rozina Thobani, Aneeta Hotwani, Furqan Kabir, Jan Mohammed Dec 2021

Effect Of 3 Days Of Oral Azithromycin On Young Children With Acute Diarrhea In Low-Resource Settings: A Randomized Clinical Trial, Antibiotics For Children With Diarrhea (Abcd) Study Group, Tahmeed Ahmed, Farah Naz Qamar, Mohammad Tahir Yousafzai, Shahida Qureshi, Sadia Shakoor, Rozina Thobani, Aneeta Hotwani, Furqan Kabir, Jan Mohammed

Department of Paediatrics and Child Health

Importance: World Health Organization (WHO) guidelines do not recommend routine antibiotic use for children with acute watery diarrhea. However, recent studies suggest that a significant proportion of such episodes have a bacterial cause and are associated with mortality and growth impairment, especially among children at high risk of diarrhea-associated mortality. Expanding antibiotic use among dehydrated or undernourished children may reduce diarrhea-associated mortality and improve growth.
Objective: To determine whether the addition of azithromycin to standard case management of acute nonbloody watery diarrhea for children aged 2 to 23 months who are dehydrated or undernourished could reduce mortality and improve linear …


Role Of Gut Microbiome In Covid-19: An Insight Into Pathogenesis And Therapeutic Potential, Ikram Hussain, Gabriel Liu Yuan Cher, Muhammad Abbas Abid, Muhammad Bilal Abid Oct 2021

Role Of Gut Microbiome In Covid-19: An Insight Into Pathogenesis And Therapeutic Potential, Ikram Hussain, Gabriel Liu Yuan Cher, Muhammad Abbas Abid, Muhammad Bilal Abid

Department of Pathology and Laboratory Medicine

Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), resulted in an unprecedented global crisis. Although primarily a respiratory illness, dysregulated immune responses may lead to multi-organ dysfunction. Prior data showed that the resident microbial communities of gastrointestinal and respiratory tracts act as modulators of local and systemic inflammatory activity (the gut-lung axis). Evolving evidence now signals an alteration in the gut microbiome, brought upon either by cytokines from the infected respiratory tract or from direct infection of the gut, or both. Dysbiosis leads to a "leaky gut". The intestinal permeability then allows access to …


Metastatic Renal Cell Carcinoma To Pancreas And Gastrointestinal Tract: A Clinicopathological Study Of 3 Cases And Review Of Literature, Jamshid Abdul Ghafar, Nasir Ud Din, Ramin Saadaat, Zubair Ahmad May 2021

Metastatic Renal Cell Carcinoma To Pancreas And Gastrointestinal Tract: A Clinicopathological Study Of 3 Cases And Review Of Literature, Jamshid Abdul Ghafar, Nasir Ud Din, Ramin Saadaat, Zubair Ahmad

Department of Pathology and Laboratory Medicine

Background: Renal Cell Carcinoma (RCC) metastasizes in approximately 20-30% cases. The most common sites for metastases are the lungs, bones, liver, and brain. Metastases of RCC in the gastrointestinal tract (GIT) are very rare. Metastatic RCC has a poor prognosis. We herein present a case series of three patients with metastatic disease in the colon, duodenum, and pancreas following complete resection of RCC.
Methods: Hematoxylin and Eosin and immunohistochemical slides of 3 cases of RCC metastatic to GIT were reviewed. These cases were diagnosed between 2002 and 2019 at French Medical Institute for Mothers and Children (FMIC), Kabul, Afghanistan, and …


Diagnostic Accuracy Of The Forns Score For Liver Cirrhosis In Patients With Chronic Viral Hepatitis, Tayyaba Bukhari, Lena Jafri, Hafsa Majid, Sibtain Ahmed, Aysha Habib Khan, Shahab Abid, Aniqa Raza, Imran Siddiqui Apr 2021

Diagnostic Accuracy Of The Forns Score For Liver Cirrhosis In Patients With Chronic Viral Hepatitis, Tayyaba Bukhari, Lena Jafri, Hafsa Majid, Sibtain Ahmed, Aysha Habib Khan, Shahab Abid, Aniqa Raza, Imran Siddiqui

Department of Pathology and Laboratory Medicine

Introduction: Liver cirrhosis is an irreversible and end-stage disease. It results from chronic liver damage characterized by the replacement of normal liver tissue by fibrosis, leading to the progressive loss of liver function. Making an early diagnosis of cirrhosis is important for patients with chronic hepatitis because early antiviral therapy can prevent the progression of cirrhosis and even induce regression. There have been efforts to develop surrogate markers for liver cirrhosis as the biopsy is invasive, costly, and difficult to standardize.
Methods: This was a cross-sectional study conducted at the Section of Chemical Pathology, the Department of Pathology and Laboratory …


Effect Of Crohn's Disease On Villous Length And Cyp3a4 Expression In The Pediatric Small Intestine., Carrie A. Vyhlidal, Brian D. Chapron, Atif Ahmed, Vivekanand Singh, Rebecca Casini, Valentina Shakhnovich Mar 2021

Effect Of Crohn's Disease On Villous Length And Cyp3a4 Expression In The Pediatric Small Intestine., Carrie A. Vyhlidal, Brian D. Chapron, Atif Ahmed, Vivekanand Singh, Rebecca Casini, Valentina Shakhnovich

Manuscripts, Articles, Book Chapters and Other Papers

Changes in absorptive capacity and first-pass metabolism in the small intestine affect oral drug bioavailability. Characterization of such changes as a consequence of inflammation is important for developing physiologically-based pharmacokinetic (PBPK) models for inflammatory bowel disease. We sought to elucidate the impact of small intestinal Crohn's disease (CD) on villous length and CYP3A4 expression in children. Freshly frozen duodenal and terminal ileum (TI) biopsies from 107 children (1-19 years) with and without CD were evaluated for active inflammation. Villous length and CYP3A4 mRNA/protein expression were compared among regions of active and inactive inflammation in CD and controls. A twofold reduction …


Gastroenteropancreatic Neuroendocrine Tumours: Clinicopathological Evaluation At Shifa International Hospital, Islamabad, Nadira Mamoon, Hania Naveed, Mariam Abid, Humaira Nasir, Imran Nazir Ahmad, Zujajah Hameed, Asna Haroon Khan Feb 2021

Gastroenteropancreatic Neuroendocrine Tumours: Clinicopathological Evaluation At Shifa International Hospital, Islamabad, Nadira Mamoon, Hania Naveed, Mariam Abid, Humaira Nasir, Imran Nazir Ahmad, Zujajah Hameed, Asna Haroon Khan

Department of Pathology and Laboratory Medicine

Objective: Clinicopathological features of gastroenteropancreatic neuroendocrine tumours (GEP-NETs) have rarely been studied in Pakistani population. We investigated clinical characteristics of these tumours according to updated World Health Organization (WHO) 2010 classification.
Methods: The data of Shifa International Hospital, Islamabad was retrospectively analysed for pathologically confirmed GEP-NETs from January 2013 to March 2018.
Results: One hundred and eighteen patients (mean age, 52.2± 16.4 years; Of these 65(55.1%) were males. Majority, 98(83.1%) of the patients were symptomatic including 6(5.1%) with functional tumours. Pancreas was the most frequent primary site noted in 33(28%) patients. The most common histologic type was well differentiated neuroendocrine …


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 …


Immunohistochemical Pattern– A Prognostic Factor For Synchronous Gastrointestinal Cancer, Catalin Alius, Catalin Gabriel Cirstoveanu, Cristinel Dumitru Badiu, Valeriu Ardeleanu, Vasile Adrian Dumitru Sep 2020

Immunohistochemical Pattern– A Prognostic Factor For Synchronous Gastrointestinal Cancer, Catalin Alius, Catalin Gabriel Cirstoveanu, Cristinel Dumitru Badiu, Valeriu Ardeleanu, Vasile Adrian Dumitru

Journal of Mind and Medical Sciences

Recent advancements in medical genetics and molecular biology are reflected in the modern understanding and approach to colorectal carcinoma (CRC). Understanding the cellular mechanisms and mutational patterns that promote carcinogenesis could enhance the predictive accuracy of the TNM classification. Furthermore, this will allow for a much more documented stratification and tailored oncological treatment. This paper presents an illustrative case of a relatively young patient (50 years old) with no family history of cancer who was diagnosed with four synchronous gastrointestinal (GI) adenocarcinomas displaying a wild type P53, negative BRAF testing, and mutated MLH1 and PMS2 proteins. This case report contributes …