Internal Medicine Commons^™

Covid-19 And Lung Cavitation: A Clue To Pathogenesis?, Tanner W. Norris, Blake M. Snyder, Patryk Purta, Ryan P. Spilman, Vanessa J. Craig

HCA Healthcare Journal of Medicine

Lung cavitation as a complication of COVID-19 is rare. A 56-year-old male presented with lung cavitation, small volume hemoptysis, and violaceous discoloration of the right great toe, 5 weeks after diagnosis with COVID-19 pneumonia. The digital changes were consistent with previously described microvascular changes called "COVID toe." CT angiography of the chest was negative for pulmonary embolism but showed a 2.5 x 3.1 x 2.2 cm cavitation within the right lung. Extensive evaluation for commonly implicated infectious and autoimmune causes was negative. We concluded that the cavitary lung lesions were likely a complication of COVID-19 pneumonia and may implicate microangiopathy …

Phenotypic And Genetic Spectrum Of Atp6v1a Encephalopathy: A Disorder Of Lysosomal Homeostasis, Renzo Guerrini, Davide Mei, Katalin Kerti-Szigeti, Sara Pepe, Mary Kay Koenig, Gretchen Von Allmen, Megan T Cho, Kimberly Mcdonald, Janice Baker, Vikas Bhambhani, Zöe Powis, Lance Rodan, Rima Nabbout, Giulia Barcia, Jill A Rosenfeld, Carlos A Bacino, Cyril Mignot, Lillian H Power, Catharine J Harris, Dragan Marjanovic, Rikke S Møller, Trine B Hammer, Riikka Keski Filppula, Päivi Vieira, Clara Hildebrandt, Stephanie Sacharow, Luca Maragliano, Fabio Benfenati, Katherine Lachlan, Andreas Benneche, Florence Petit, Jean Madeleine De Sainte Agathe, Barbara Hallinan, Yue Si, Ingrid M Wentzensen, Fanggeng Zou, Vinodh Narayanan, Naomichi Matsumoto, Alessandra Boncristiano, Giancarlo La Marca, Mitsuhiro Kato, Kristin Anderson, Carmen Barba, Luisa Sturiale, Domenico Garozzo, Roberto Bei, Laura Masuelli, Valerio Conti, Gaia Novarino, Anna Fassio

Faculty, Staff and Student Publications

Vacuolar-type H+-ATPase (V-ATPase) is a multimeric complex present in a variety of cellular membranes that acts as an ATP-dependent proton pump and plays a key role in pH homeostasis and intracellular signalling pathways. In humans, 22 autosomal genes encode for a redundant set of subunits allowing the composition of diverse V-ATPase complexes with specific properties and expression. Sixteen subunits have been linked to human disease. Here we describe 26 patients harbouring 20 distinct pathogenic de novo missense ATP6V1A variants, mainly clustering within the ATP synthase α/β family-nucleotide-binding domain. At a mean age of 7 years (extremes: 6 weeks, youngest deceased …

A Rare Metastatic Primary Rectal Melanoma In A Geriatric Male, Onyinye Ugonabo, Mujtaba Mohamed, Ebubechukwu Ezeh, Joseph Simmons, Jonathan Cuda, Shima Ghavimi

Internal Medicine

Primary rectal melanoma (PRM) is an uncommon malignancy whose etiology remains unknown. Most patients present with rectal bleeding. Distant metastasis is commonly seen in the lung and liver. The incidence rates for locoregional lymph node metastases on initial presentation are almost 60%. Histology and immunochemistry are useful and are the gold standard for diagnosis. The prognosis is very poor due to the late presentation of patients. Optimum surgical treatment remains controversial. Abdominoperineal resection was considered traditionally but over time, has been found to have no survival benefit. Current literature and studies, therefore, recommend wide local excision. The beneficial effects of …

The Laws Of The Dead, Gillian Naro, Md, Med, Marie-Laure Flamer, Md

The Medicine Forum

George Washington suddenly fell ill with a sore throat and labored breathing at his estate in 1799. Initial management consisted of a "mixture of molasses, vinegar and butter," that was followed by “sage, tea and vinegar.” With no signs of clinical improvement, his doctors were called to his bedside. As was standard medical care at the time and thought to be beneficial in various afflictions, he was “bleed” more than 2L of blood in an attempt to restore his good health. The three doctors overseeing the bleeding process noticed the General become weaker despite their best efforts. His breathing became …

Internal Medicine Residents’ Experience With Using Handheld Ultrasound Machines In Point-Of-Care Ultrasonography, Michael Dong, Md, Tudor Sturzoiu, Md, Fred Karaisz, Max Ruge, Md

The Medicine Forum

Point-of-care ultrasonography (POCUS) is defined as the acquisition and interpretation of ultrasonographic images generated by the clinician at the bedside. The advent of handheld machines has increased access and practical application of ultrasound technology in internal medicine training and medical education. The most common system involves a single portable ultrasound probe that connects to a smartphone or tablet, and storage of images are stored via cloud-based technology. We discuss our experience with POCUS using handheld ultrasound machines in the Thomas Jefferson University Hospital academic setting.

Pulmonary Metastases Of Basal Cell Adenocarcinoma Presenting As Hemoptysis, Matthew Dimeglio, Do, Mba, Mark Mallozzi, Md, Prarthna Kulandaisamy, Md, Julie Barta, Md, Jennifer Johnson, Md

The Medicine Forum

Basal Cell Adenocarcinoma (BCAC) is a rare malignancy, only accounting for approximately 2% of all salivary neoplasms. Considered the malignant counterpart of basal cell adenoma, it most commonly presents at 60 years of age without gender predilection. Sites of involvement frequently includes the parotid gland, but sites in the minor salivary glands, nasopharynx, buccal mucosa, and tongue have also been reported. Often regarded as an indolent malignancy, BCAC can occasionally cause invasive disease and infrequently, metastatic disease. Among all solid tumors, endobronchial metastases is quite a rare occurrence, contributing to approximately 4% of endobronchial biopsies4. Most common sites of metastases …

Spontaneous Tumor Lysis Syndrome In Undifferentiated Pelvic Solid Tumor With Associated New Onset Atrial Flutter: A Case Report, Sameep Thapa, Md, Max Ruge, Md, Tamar Wolinsky Md

The Medicine Forum

Tumor lysis syndrome (TLS) is an oncologic emergency that is caused by electrolyte derangements from the lysis of malignant tumor cells. The syndrome consists of several laboratory abnormalities including hyperuricemia, hyperkalemia, hyperphosphatemia, and hypocalcemia1,2. When these lab findings are associated with end-organ damage such as acute renal failure, seizures, or cardiac dysrhythmias amongst others, it is known as clinical TLS3. TLS is more commonly associated with hematological malignancies given their tendency of rapid cellular turnover. The most common culprits include acute lymphocytic leukemia and Burkitt’s lymphoma. It is, however, quite rare for TLS to occur secondary to a solid malignancy4. …

A Case Report Of Methemoglobinemia And Hemolytic Anemia In The Setting Of Covid-19 Pneumonia And G6pd Deficiency, Grant W. Jirka, Md, Travis Hunt, Md, Sushil Ghimire, Md, Rakhshanda Akram, Md, Urvashi Vaid, Md, Ms

The Medicine Forum

It is well known that hereditary or acquired methemoglobinemia can cause hypoxia due to the oxidation of heme, which impairs its ability to offload oxygen (Figures 1 & 2), and that acquired methemoglobinemia is most often caused by exposure to drugs and toxins that oxidize hemoglobin to methemoglobin, directly or indirectly1. Recently, a few case reports have highlighted methemoglobinemia in patients with COVID-19 pneumonia. Some of these reports were due to treatment with hydroxychloroquine and others from unidentifiable causes2-4. We present a case in which a patient with COVID-19 pneumonia was diagnosed with methemoglobinemia and acute hemolysis from G6PD deficiency …

A Case Of Acute Pancreatitis Associated With Empagliflozin, Tudor Sturzoiu, Md, Sameep Thapa, Md, Ellen Solomon, Suchit Bhutani, Md

The Medicine Forum

Sodium-glucose cotransporter 2 (SGLT2) inhibitors are being prescribed increasingly more often for type 2 diabetes mellitus as well as heart failure. They have not typically been associated with acute pancreatitis, but there has been a steady flow of case reports implicating them in acute pancreatitis over the years since they were initially approved. Here, we present the case of an 82-year-old woman with a past medical history of T2DM, COPD, hyperlipidemia, a remote stroke, peripheral arterial disease, and remote breast cancer now with recurrent localized breast cancer on treatment with ademaciclib and letrozole who presented to the emergency department with …

A Confounding Case Of Acute Hepatitis A, Andrea Molin, Md, Michael Cheung, Md, Timothy Kuchera, Md

The Medicine Forum

Hepatitis A (HAV) is a picornavirus transmitted via fecal-oral route that disproportionately affects homeless persons, men who have sex with men, and individuals who use intravenous drugs. Acute HAV typically presents with nausea, vomiting, abdominal pain, and fever. It is most commonly self-limited but can progress to fulminant hepatic failure in less than 1% of cases. The following case is a unique presentation of acute HAV infection requiring diagnostic dexterity and critical thinking.

Shocked But Not Surprised: The Philly Cardioversion, Gillian Naro, Md, Med, Naman Upadhyay, Md, Emilie Thompson, Md, Tudor Sturzoiu, Md

The Medicine Forum

Neuromuscular incapacitating devices, colloquially known as ‘tasers’, are typically used by police and security personnel as a non-lethal way to subdue combative assailants. Unfortunately, there are times in the hospital when patients can become assailants, thus potentially necessitating the use of tasers to ensure the safety of staff and other patients. Tasers come in several varieties. However, those typically used by law enforcement have a 50,000-V capacity and deliver 0.36 - 1.76 Joules of energy per pulse, at a rate of ~20 pulses per second, via two barbed projections. This leads to incapacitation of the assailant via the induction of …

A Case Of Patent Foramen Ovale As A Cause Of Persistent Hypoxia, Jaya Janadhyala, Md, Jonathan Foster, Md

The Medicine Forum

Patent foramen ovale (PFO) is a congenital cardiac variant caused by failure of the closure of a passage in the atrial septum. It is quite common, occurring in as much as 27% of the population based on autopsy studies. Most cases of PFOs are incidentally discovered or found during work-up of cryptogenic strokes as a potential cause of the stroke.1 New research is being conducted on the role PFOs play in hypoxia from intracardiac right-to-left shunting, including in patients with co-existent cardiovascular and pulmonary disease

Cardiac Amyloidosis: A Known Disease With An Unknown Presentation, Svenja Schneider, Md, Tudor Sturzoiu, Md, Tanuka Datta, Md, Yevgeniy Brailovsky, Do, Facc, Sung-Hae Cho, Md, Facc, Paulina Gorodin-Kiliddar, Md

The Medicine Forum

Cardiac amyloidosis is an increasingly recognized entity that causes significant morbidity and mortality. Transthyretin amyloidosis (ATTR) is present in about 16% of patients with severe aortic stenosis and up to 17% of patients with heart failure with preserved ejection fraction9,10. Though the screening test of choice, echocardiography is not highly sensitive or specific, and it should not be relied upon to rule out cardiac amyloidosis, especially if clinical suspicion is high.

We present a case of a 58-year-old woman with a history of bilateral carpal tunnel syndrome who presented with paresthesia and syncope. Extensive workup for neurologic, infectious, and malignant …

Another Case Of Takotsubo Syndrome: Excluded By The Presence Of Significant Coronary Artery Disease, Or Caused By Significant Coronary Artery Disease?, Bharaniabirami Rajaram, Md, Neveda Murugesan, Md, Gregary D. Marhefka, Md

The Medicine Forum

Takotsubo syndrome (TTS) is a reversible condition of abnormal myocardial contraction that was first given this name in Japan by Dr. Sato in 1991. The name comes from the Japanese word for “octopus trap,” which has a similar shape to that of the left ventricle on ventriculography during Takotsubo syndrome. It is also known as broken heart syndrome, stress-induced cardiomyopathy, or apical ballooning syndrome. The first descriptions of this phenomenon date as far back as the 1960s.

TTS typically presents with symptoms and clinical signs suggestive of acute coronary syndrome (ACS). It may include ST segment elevations on electrocardiogram (ECG) …

Challenges Of Managing Giant Cell Myocarditis: A Case Report On The Mechanical Support Perspective, Abdul W. Kazi, Md, Mba, Harsh Doshi, Md

The Medicine Forum

Giant cell myocarditis is a rare and fatal disease which may result in heart failure, complete heart block, or ventricular arrhythmias. We describe a patient who previously had been discharged from our institution with a left ventricular assist device and immunosuppressive therapy for management of his giant cell myocarditis. His subsequent course was complicated by further deterioration of heart function which required multiple mechanical circulatory support devices. He successfully received a heart transplant which later had recurrence of giant cell myocarditis. This case highlights the challenges of left and right sided mechanical assist devices in managing giant cell myocarditis.

AG …

From The Chief Residents, Cristina Angelo, Md, Katherine Duffey, Md, Evan Nardone, Md, Michelle Perkons, Md

The Medicine Forum

The four of us have had the unique opportunity to work alongside you and watch you grow throughout the last three years. During an extremely turbulent time at Jefferson, in the city of Philadelphia, and the larger healthcare landscape you all have been the constant presence that has kept the Jefferson IM residency culture alive. Jefferson residents are: Compassionate, intelligent, dedicated, fun, and resilient. But most of all, Jefferson residents look out for each other and have each other’s backs. This is the culture that brings people to our program and the culture that makes residency training which would otherwise …

From The Editors, Shuji Mitsuhashi, Md, Abdul W. Kazi, Md, Matthew Dimeglio, Do, Mba

The Medicine Forum

It is our honor to present the 23rd Annual edition of The Medicine Forum to the Jefferson community. With all the uncertainties and stressors that exist both inside and outside of the hospital walls, it is truly remarkable to see the quality of contributions by our authors. From the multitude of case reports to the collection of artworks, our residents have generated an array of unique and interesting work. We hope that this edition will continue to honor the tradition of The Medicine Forum, which is the celebration of scholarly activity among physicians in training at our institution.

Editorial …

From The Desk Of The Residency Program Director, Emily Stewart, Md, Facp

The Medicine Forum

Our program continues to train the best and brightest residents in the country. As we complete another challenging academic year marred by the ongoing fight against gun violence in Philadelphia and across the United States, the opioid pandemic and the ever present threat of another COVID-19 surge our residents have continued to rise to every challenge and thrive as physicians. During the three years we are fortunate to have them at our program, it is my distinct pleasure to watch them grow into confident, dedicated, compassionate clinicians. The residents are not just outstanding clinicians but excel in all aspects of …

Table Of Contents: The Medicine Forum Volume 23, 2021-2022

The Medicine Forum

Table of Contents: The Medicine Forum Volume 23, 2021-2022

Interobserver Variability Among Expert Readers Quantifying Plaque Volume And Plaque Characteristics On Coronary Ct Angiography: A Clarify Trial Sub-Study, Rebecca Jonas, Shaneke Weerakoon, Rebecca Fisher, William F Griffin, Vishak Kumar, Habib Rahban, Hugo Marques, Ronald P Karlsberg, Robert S Jennings, Tami R Crabtree, Andrew D Choi, James P Earls

Division of Internal Medicine Faculty Papers & Presentations

Background: The difference between expert level (L3) reader and artificial intelligence (AI) performance for quantifying coronary plaque and plaque components is unknown.

Objective: This study evaluates the interobserver variability among expert readers for quantifying the volume of coronary plaque and plaque components on coronary computed tomographic angiography (CCTA) using an artificial intelligence enabled quantitative CCTA analysis software as a reference (AI-QCT).

Methods: This study uses CCTA imaging obtained from 232 patients enrolled in the CLARIFY (CT EvaLuation by ARtificial Intelligence For Atherosclerosis, Stenosis and Vascular MorphologY) study. Readers quantified overall plaque volume and the % breakdown of noncalcified plaque (NCP) …