Dermatopathology

Dermpath Diagnosis

Painful, Nonhealing, Violaceus Plaque on the Right Breast

Author:

Patrick McMullan, PhD

Lorin A. Bibb, MD

Katalin Ferenczi, MD

A 42-year-old woman with a medical history of hypertension and smoking tobacco (5 pack years) presented with a painful, nonhealing, violaceous,...

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Photo Challenge

Ulcerated Nodule on the Lip

Author:

Georgeanne Cornell, DO

Wei Su, MD

John Moesch, DO

A 79-year-old man with a medical history of type 2 diabetes mellitus, hypothyroidism, and atrial fibrillation presented with an enlarging lesion...

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Photo Challenge

White Spots on the Extremities

Author:

Faraz Yousefian, DO

Amit Sharma, DO

A 52-year-old Black woman presented with self-described whitened spots on the arms and legs of 2 years’ duration. She experienced no improvement...

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Photo Challenge

Erythematous Dermal Facial Plaques in a Neutropenic Patient

Author:

Erica J. Mark, MD

Corina A. Rusu, MD

Seth M. Martin, MD

Sarah Gradecki, MD

R. Hal Flowers, MD

A 50-year-old woman undergoing cytarabine induction therapy for acute myeloid leukemia developed tender, erythematous, dermal plaques on the nasal...

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Dermpath Diagnosis

Extensive Erosions and Ulcerations on the Trunk and Extremities in a Neonate

Author:

Julia L. Accetta, MD

Saachvir Singh

Raminder K. Grover, MD

Matthew F. Helm, MD

A neonate was born with extensive erosions and ulcerations on the trunk and extremities. The eroded areas had a beefy red appearance. A biopsy...

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Practical Pearls

Glitter Effects of Nail Art on Optical Coherence Tomography

Author:

Madiha Khan, BA, OMS-IV

Moshe Y. Bressler, DO

Orit Markowitz, MD

Optical coherence tomography (OCT) is a noninvasive imaging technology that can visualize nail morphology in diseases such as psoriatic arthritis...

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Photo Challenge

Oval Brown Plaque on the Palm

Author:

Paayal S. Vora, MD

Abraham M. Korman, MD

A 43-year-old woman presented with a painful lesion on the palm of 30 years’ duration that had grown in size. Physical examination revealed an...

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Case Letter

Crusted Scabies Presenting as Erythroderma in a Patient With Iatrogenic Immunosuppression for Treatment of Granulomatosis With Polyangiitis

Author:

Brianna Olamiju, MD

Jonathan S. Leventhal, MD

Matthew D. Vesely, MD, PhD

Crusted scabies is a highly contagious, severe cutaneous ectoparasitic infection that can present atypically in the form of erythroderma.

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Case Letter

Primary Effusion Lymphoma: An Infiltrative Plaque in a Patient With HIV

Author:

Stephen J. Malachowski, MD, MS

Daren A. Diiorio, MD

Jamal Saleh, MD

Olayemi Sokumbi, MD

Extracavitary primary effusion lymphoma is an aggressive non-Hodgkin B-cell lymphoma that occurs solely in the presence of human herpesvirus 8...

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Photo Challenge

Papular Acneform Eruption With Mucositis

Author:

Daniel P. Zieman, MD

Arveen Bhasin, MD

Jason C. Sluzevich, MD

A 48-year-old man with a history of ulcerative colitis that was well-controlled with adalimumab presented with a generalized acneform eruption...

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Latest News

Expunging ‘penicillin allergy’: Your questions answered

Author:

Charles P. Vega, MD

Publish date: May 18, 2023

Great to hear the enthusiasm for testing for penicillin allergy!

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