Dermatopathology

Case Letter

Multiple Progressive Papules on the Abdomen

Author:

Kikkeri Narayanasetty Naveen, MD

Varadraj V. Pai, MD

Tukaram Sori, MD

Syringoma is a benign adnexal tumor derived from the intradermal portion of the eccrine sweat ducts that occurs predominantly in women at puberty...

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Article

Endocrine Mucin-Producing Sweat Gland Carcinoma

Author:

Ikue Shimizu, MD

Raymound Dufresne, MD

Leslie Robinson-Bostom, MD

Endocrine mucin-producing sweat gland carcinoma (EMPSGC) is a rare, low-grade, cutaneous neoplasm that may be associated with invasive mucinous...

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Dermpath Diagnosis

Wells Syndrome

Author:

Fareed Haddad, BS

Thomas Helm, MD

Wells syndrome, also known as eosinophilic cellulitis, was first described in 1971. Patients develop pruritic or painful urticarial and...

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Case Letter

In-Office Diagnosis of Cutaneous Mycosis: A Comparison of Potassium Hydroxide, Swartz-Lamkins, and Chlorazol Black E Fungal Stains

Author:

Vivian Y. Shi, MD

Peter A. Lio, MD

Cutaneous mycosis represents the most common type of skin infection and accounts for up to 17% of dermatology office visits.

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Case Letter

Herpes Simplex Virus–Associated Pseudolymphoma

Author:

Jesse M. Lewin, MD

Rachel Farley-Loftus, MD

Miriam Keltz Pomeranz, MD

Pseudolymphomas consist of benign reactive T- or B-cell lymphoproliferative processes that clinically and/or histologically simulate cutaneous...

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Article

Perineural Xanthoma Associated With Type 2 Diabetes Mellitus and Hyperlipidemia

Author:

Rie Arai, MD, MPH

Shiori Itoh, MD

Asako Masatsugu, MD

Miyuki Ohta, MD

Masayuki Shintaku, MD, PhD

Ken Masatsugu, MD

Yuji Horiguchi, MD, PhD

It is well known that patients with diabetes mellitus (DM) may demonstrate skin manifestations, or dermadromes, due to disease-related metabolic,...

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Dermpath Diagnosis

Lichen Nitidus

Author:

Soloman Shockman, MD

Nektarios Lountzis, MD

Lichen nitidus clinically presents as multiple shiny, pinhead-sized, flesh-colored, dome-shaped papules typically involving the genitalia, upper...

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Article

Carcinosarcoma: A Primary Cutaneous Tumor With Biphasic Differentiation

Author:

Julia M. Kwan, MD

Elizabeth K. Satter, MD, MPH

We present a case of a primary cutaneous carcinosarcoma (PCS). Histopathologically, PCS is defined as a biphasic tumor composed of malignant...

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Dermpath Diagnosis

Superficial Plantar Fibromatosis

Author:

Luke Lennox, BA

Anna Li, BS

Thomas N. Helm, MD

Plantar fibromatosis typically presents as firm plaques or nodules on the plantar surface of the foot. The process is caused by a proliferation of...

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Article

Crusted Scabies and Tinea Corporis After Treatment of Presumed Bullous Pemphigoid

Author:

Sara A. Hylwa, MD

Lesley Loss, MD

Marcelle Grassi, MD

We report a case of scabies that immunohistochemically mimicked bullous pemphigoid (BP) in an 82-year-old woman who presented with intractable...

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Article

Gouty Tophi on the Ear: A Review

Author:

Indy Chabra, MD, PhD

Rajendra Singh, MD

Although the classic location of gouty tophi is the great toe (podagra), gouty tophi of the ear also is common and is worth including in the...

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