Dermatology Commons^™

Healing Times Of Mohs Defects Using Cellular, Acellular, And Matrix-Like Products Compared With Secondary Intention In A Single Patient, Benjamin R. Cooper, Anthony Concilla, Kathleen Ward, Taha Rasul, Arianne E. Chavez

South Atlantic Division GME Research Days 2026

No abstract provided.

Beneath The Pigment: An Unusual Cystic Complication Of Red Ink, Tamara Fakhoury, Erika Pulver, Karissa Lehew, Angelia Stepien

South Atlantic Division GME Research Days 2026

No abstract provided.

High-Grade Undifferentiated Sarcoma With Osteoclast-Like Giant Cells Mimicking A Pyogenic Granuloma, Shiv Patel, Tamara Fakhoury, Taha Rasul, Benjamin Cooper, Leila Parsa, Madeline Coleman, Alexandra Mathis, Karthik Krishnamurthy, Michelle Foley

South Atlantic Division GME Research Days 2026

No abstract provided.

Often Overlooked: Microbial Influence In Disease Progression Of Mycosis Fungoides, Alexis Coican, Angelia Stepien

South Atlantic Division GME Research Days 2026

No abstract provided.

Can Chatgpt Cut It? Evaluating Ai In Dermatologic Surgery Reconstruction, Anthony Concilla, Benjamin R. Cooper, Taha F. Rasul, David Ciocon, Adam Chahine

South Atlantic Division GME Research Days 2026

No abstract provided.

Afx: Small Tumor, Big Personality, Alexandra Mathis, Abigail Lowe, Juan Rosario

South Atlantic Division GME Research Days 2026

No abstract provided.

Not Your Average Nodule: The Enigmatic Chondroid Syringoma, Alexandra Mathis, Clara Barranco, Joanna Mcgetrick, Karthik Krishnamurthy

South Atlantic Division GME Research Days 2026

No abstract provided.

Cutaneous Clues To Systemic Relapse In Alk-Negative, Cd30+ Anaplastic Large Cell Lymphoma, Leila Parsa, Angelia Stepien

South Atlantic Division GME Research Days 2026

No abstract provided.

A Case Of Calciphylaxis Initially Managed As Cellulitis, Karan Rajalingam, Benjamin R. Cooper, Angelia Stepien

South Atlantic Division GME Research Days 2026

No abstract provided.

Angiolymphoid Hyperplasia With Eosinophilia Causing Conductive Hearing Loss: A Case Report, Radhika Mohan, Kulwinder Bhatnura, Harsh Bhatt, Jennifer Y. Cho, Dennis Besong

South Atlantic Division GME Research Days 2026

No abstract provided.

Cold-Sensitive Acral Hand Lesions, Avery H. Seward, Jocelyn H. Larocque

Department of Medicine Faculty Publications

[Case description] An otherwise healthy woman in her 60s presented with a 2-year history of a persistent, itchy, and tender rash on the dorsal hands. The rash fluctuated in severity with the seasons, worsening during the colder months. The patient denied joint pain and fatigue, or lesions elsewhere.

Examination revealed partially blanchable violaceous plaques on the dorsal hands with partial sparing of the proximal and distal interphalangeal joints (Fig 1). A few punctate, crusted erosions and purpuric macules were present on the dorsal and volar distal phalanges (Figs 2 and 3).

Enlarging Fingertip Nodule Mimicking A Pyogenic Granuloma In A Man In His 60'S, Avery H. Seward, Jocelyn H. Larocque, Stephen M. Hughes

Department of Medicine Faculty Publications

[Case presentation] A man in his 60's with a history of hypertension, hyperlipidemia, and resected colon cancer in remission presented with a 4-month history of an enlarging nodule on the right fourth fingertip. The patient recalled having a splinter removed from the same site a few weeks prior to the development of the lesion. The lesion was initially diagnosed by an orthopaedist as a pyogenic granuloma (Figure 1a), and the patient was advised to apply table salt to the area several times daily. However, the lesion continued to enlarge over 3 months with occasional bleeding and mild tenderness. Physical examination …

Educational Case: Hidradenitis Suppurativa, Ryan C. Saal, Linnea Lackstrom Westerkam, Cristo A. Carrasco Mendoza, Paul B. George, Christopher J. Sayed

Department of Medicine Faculty Publications

[Introduction] The following fictional case is intended as a learning tool within the Pathology Competencies for Medical Education (PCME), a set of national standards for teaching pathology. These are divided into three basic competencies: Disease Mechanisms and Processes, Organ System Pathology, and Diagnostic Medicine and Therapeutic Pathology. For additional information, and a full list of learning objectives for all three competencies, see https://doi.org/10.1016/j.acpath.2023.100086.1¹

Objective SK1.1: Pathophysiology of changes in the skin. Describe the pathophysiologic basis for changes in the color, surface texture, swelling, temperature, and sensitivity of skin.

Competency 2: Organ system pathology, Topic: Skin (SK); Learning Goal 1: …

Dual Clinical Presentation Of A Birthmark: A Quiz, Avery H. Seward, Jacqueline E. Leyrer, Sarah H. Carlock

Department of Medicine Faculty Publications

[Introduction] A man in his early 30s presented with a longstanding birthmark on the lift thigh that was first noticed at age 12. As a teenager, the lesion was treated with a CO2 laser at an outside institution; however, the lesion continued to slowly enlarge over the past several years. The patient reported recurrent irritation and swelling from a construction safety harness with occasional bleeding and frequent bruising. Recently, the area became inflamed, prompting an ER visit, where the patient was evaluated for cellulitis, underwent a normal ultrasound and was placed on cephalexin 500 gm twice daily for 10 days.

T-Cells May Represent A Novel Biomarker For Female Pattern Hair Loss, Juan Marrero Berrios, Iain Noel Encarnacion, Noelle Desir, Aman Prasad, Matthew Hedberg, Susan Taylor, John T. Seykora

Department of Medicine Faculty Publications

[Introduction] Androgenetic alopecia (AGA) is a common non-scarring alopecia classically attributed to androgen sensitivity and genetics. Histopathologic studies have identified perifollicular and perivascular lymphocytic and histiocytic infiltrates, through the composition and clinical relevance of this infiltrate have not been fully characterized.¹ Our study aims to address this gap through detailed quantitative immunohistochemical characterization (IHC) of the inflammatory infiltrate in female patients with AGA compared to telogen effluvium (TE), a non-inflammatory control.

Drug-Induced Lichen Planus Associated With Ocrelizumab, Avery Seward, John D. Strickley, Jeffrey P. Callen

Department of Medicine Faculty Publications

This case report highlights recurrent cutaneous lichen planus as a rare adverse effect of ocrelizumab, with flares occurring after each infusion and improving with prophylactic prednisone. Recognizing this association may help clinicians diagnose and manage similar cases while allowing patients to continue an otherwise effective therapy.

Trends In Dermatologic Biologic Prescribing: A Medicare Part D Public Use File Analysis From 2018 To 2023., Cathleen V D'Angelo, Patricia Wilberger, Chase Merritt, Joshua Burshtein, Dawn Merritt

Ambulatory and Primary Care Articles

No abstract provided.

Seasonal And Geographic Trends In Photodynamic Therapy And Cryosurgery Use In The United States: A Cross-Sectional Study From 2015-2022., Dawn Merritt, Jon Lyons, Mouna Mikati, Christian Geils, Todd Schlesinger

Ambulatory and Primary Care Articles

BACKGROUND: Photodynamic therapy (PDT) is an effective field treatment for actinic keratoses (AKs). It is an ideal option for patients who prefer a minimally invasive procedure conveniently administered in their physician's office. Anecdotal clinician insights suggest that it may not be used at the same rate year-round.

OBJECTIVE: This study investigates whether PDT and cryosurgery usage is affected by season and geographic location in the United States.

METHODS: The data source is an aggregate of closed and open United States medical procedural claims (

RESULTS: PDT utilization is affected by season and geographic location. Procedural claims peak during cooler months …

Directional Association Between Irritable Bowel Syndrome And Dermatological Disease: A Large-Scale Retrospective Study, Alex Y. Liu, Naomi T. Matsuno, Houston Nelson, David Johnson, David Pariser

Department of Medicine Faculty Publications

Background/Objectives: Microbial dysbiosis is implicated with a pathogenic role in both irritable bowel syndrome (IBS) and several dermatological conditions. Yet, few studies have assessed a potential overlapping epidemiologic association. We aimed to assess the 1-year prevalence of common dermatologic conditions following an initial IBS diagnosis and to evaluate the reverse association using reciprocal analyses. Methods: We conducted a retrospective study using TriNetX. Patients aged 18–50 with no history of inflammatory bowel disease, celiac disease, or infectious intestinal disease were matched 1:1 to healthy controls by demographics and comorbidities. The primary outcome was the prevalence of acne vulgaris, psoriasis, …

Visit Complexity Differs Between Scarring And Nonscarring Alopecia: A 5-Year Dataderm Analysis, Ian Noel Encarnacion, Noelle Desir, Nicholas Schell, Apoorva Mehta, Temitayo Ogunleye, Susan Taylor

Department of Medicine Faculty Publications

[Introduction] Accurate coding is a critical component of dermatologic practice, influencing reimbursement and documentation of clinical complexity. Although alopecia has significant psychosocial and financial burdens, Current Procedural Terminology (CPT) coding patterns in alopecia management remain largely understudied. Our population-level study using the American Academy of Dermatology's DataDerm clinical registry¹ evaluates alopecia CPT coding trends, pre-2021 and post-2021 evaluation and management (E/M) CPT coding updates,² aiming to inform coding practices and visit complexity, which have significant reimbursement implications.

Persistent Peristomal Pain Due To An Exposed Cutaneous Nerve, Iain Noel Encarnacion, Kaylin Beiter, Natasha Hakkal, Emily Hejazi, Paul Hernandez, Melissa Laughter, Shannon Nugent, Samir Thaker, Xiaowei Xu, Misha Rosenbach

Department of Medicine Faculty Publications

[Introduction]

Case description

A 25-year-old woman with a history of ulcerative colitis treated with multiple abdominal surgeries complicated by peristomal pyoderma gangrenosum (PPG) presented with severe peristomal pain and ulceration. Treatment course was complicated; disease control was achieved via combination infliximab 10 mg/kg every 4 weeks, corticosteroids (topical triamcinolone 0.1% ointment, intralesional 10 mg/ml injections, and oral prednisone 30 mg daily with a gradual taper), and cyclosporine 125 mg tapering by 25 mg every 3 weeks, ultimately tapered to infliximab monotherapy.

Insurance Disparities In Hidradenitis Suppurativa: A Comprehensive Review Of Demographics, Outcomes, And Access To Care, Alim Osman, Alexandra R. Nigro, Michael C. Povelaitis, Marc Z. Handler

Department of Medicine Faculty Publications

Background: Hidradenitis suppurativa (HS) is a chronic inflammatory skin condition that disproportionately affects women, African Americans, and individuals of biracial descent. It is associated with substantial physical and psychiatric morbidity, reducing quality of life.

Objective: This review analyzed disparities in treatment outcomes, disease progression, and healthcare access among HS patients based on insurance type.

Methods: Using PRISMA guidelines, a comprehensive literature search identified 7 studies meeting inclusion criteria. Owing to data heterogeneity, studies were qualitatively analyzed.

Results: Findings consistently demonstrated that Medicaid patients experienced worse outcomes than those with private insurance or Medicare. Medicaid patients had higher rates of comorbid …

International Myositis Assessment And Clinical Studies Guidelines For Risk-Based Cancer Screening: An External Validation In Patients With Dermatomyositis Seen At A Metropolitan Academic Center, Isabel Silva, Jasper Dayanan, Alexandra Nigro, Capriana Jiang, Ma Georgina Erfe, Trixie Rivera, Saakshi Khattri

Department of Medicine Faculty Publications

Objective

Dermatomyositis (DM) is an idiopathic inflammatory myopathy (IIM) characterized by muscle weakness, skin findings, and increased malignancy risk. Cancer risk is greatest in the three years before or after DM onset, termed paraneoplastic DM. The International Myositis Assessment and Clinical Studies Group (IMACS) set forth evidence-based guidelines for risk stratification and cancer screenings for newly diagnosed patients with IIM. '

Methods

We retrospectively reviewed the records of 413 patients with a known diagnosis of DM or clinically amyopathic DM at the Mount Sinai Health System (2019-2024). Demographics, clinical findings, laboratory results, myositis autoantibody panels, and cancer screening or diagnosis …

When Unilateral Leg Swelling Is Not Deep Vein Thrombosis: A Case Of Disseminated Kaposi Sarcoma Revealing Advanced Human Immunodeficiency Virus, Ahmed Ismail, Zachary Wilson, Thomas Currow, Michael Dileonardo, Carsten Kirby

Department of Medicine Faculty Publications

Kaposi sarcoma (KS) is an acquired immunodeficiency syndrome (AIDS)-defining malignancy that can involve the skin, lymph nodes, and visceral organs in patients with advanced human immunodeficiency virus (HIV). We report the case of a 35-year-old man with no known prior medical history who presented to the charity care clinic complaining of recurrent thrush and two weeks of progressive right lower extremity swelling. His physical examination revealed painful, pruritic violaceous papules and plaques over the proximal right thigh that had been present for one week. He was referred to the emergency department (ED) for further workup. Venous duplex ultrasonography was negative …

Ex Vivo Assessment Of Keratinocytic Carcinomas Using A Fast Mid-Infrared Probe., Maria G Vazquez De Vasquez, Rebecca C Bradley, Charles L Hitchcock, Angela S Casey, Austin Cusick, James V Coe, Ronald Siegle

Ambulatory and Primary Care Articles

A fast mid-infrared spectral probe was used to record infrared (IR) spectra of fresh skin tissue removed from patients with biopsy-proven keratinocytic cancer (KC) during Mohs surgery. A 150-patient library of IR spectral data was obtained to see if KC on the epidermal side (outside) of tissue samples can be differentiated from adjacent nonmalignant tissue and normal skin. A linear support vector machine model minimized overtraining predicting the contributions to decisions at each step in the spectrum. Training with an equal cost for KC and nontumor cases samples demonstrated a KC sensitivity of 93% ± 5% and specificity 82% ± …

Enhancing Skin Integrity In Medical Intensive Care Unit Patients, Chelsea Lannoo

Publications 2026-present

No abstract provided.