Dermatopathology
Photo Challenge
Periungual Papules in an Elderly Woman
A 79-year-old woman presented with pruritic papules and plaques on the chest, back, arms, hands, legs, and feet of 1 year’s duration. She reported...
For Residents
A Starter Guide to Immunofluorescence Testing in Dermatology
This article is intended to serve as a helpful primer for immunofluorescence testing in dermatology, with an overview of the tests available as...
Photo Challenge
Erythematous Nodule With Central Erosions on the Calf
A 62-year-old woman presented with an irregular, erythematous, 4-mm nodule with central erosions on the left proximal calf of 2 months’ duration....
Dermpath Diagnosis
Firm Digital Papulonodules in an Infant
A 3-month-old girl presented with papulonodules on the distal left ring finger. Initially the lesions were thought to be insect bites but became...
Coding
Advocacy Update: Is Your Practice Equipped to Handle Looming Changes in Dermatopathology?
In July 2021, the Centers for Medicare & Medicaid Services (CMS) published a proposed fee schedule that will negatively impact practices that...
Case Reports
Early Pilomatrix Carcinoma: A Case Report With Emphasis on Molecular Pathology and Review of the Literature
Early diagnosis and prompt treatment of pilomatrix carcinoma is crucial in lowering recurrence rate and avoiding a poor outcome.
Photo Challenge
Tender Annular Plaque on the Thigh
A 58-year-old man who was receiving gilteritinib therapy for relapsed acute myeloid leukemia presented to the emergency department with a painful...
Dermpath Diagnosis
Soft Nodule on the Forearm
A 54-year-old woman presented with an enlarging mass on the right volar forearm. Physical examination revealed a 1-cm, soft, mobile, subcutaneous...
Photo Challenge
Painful Psoriasiform Plaques
A 45-year-old woman presented to the emergency department with a painful skin eruption and malaise of 5 weeks’ duration. She had an orthotopic...
Case Reports
Bullous Amyloidosis Masquerading as Pseudoporphyria
Primary systemic amyloidosis, including the rare cutaneous bullous amyloidosis, often is difficult to diagnose and has been associated with...
Photo Challenge
Pedunculated Tumor on the Posterior Neck
A 56-year-old man presented with a progressively enlarging lesion on the posterior neck of 8 months’ duration. He reported localized pruritus of...