Dermatopathology

Dermpath Diagnosis

Clear Cell Fibrous Papule

Author:

Ryan Yu, MD

Samih Salama, MD, FRCPC

Salem Alowami, MB Bch, FRCP

A fibrous papule is a common benign lesion that usually presents in adults on the face, especially on the lower portion of the nose.

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Article

Cutaneous Adenosquamous Carcinoma: A Rare Neoplasm With Biphasic Differentiation

Author:

Vikas Patel, MD

Stephen M. Squires, MD

Deede Y. Liu, MD

Cutaneous adenosquamous carcinoma (cASC) is an extremely rare malignant neoplasm. Due to its disputed pathophysiology, ambiguity of presentation,...

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Dermpath Diagnosis

Lipidized Dermatofibroma

Author:

Amanda F. Marsch, MD

Ramayee Periakaruppan, MD

Marylee Braniecki, MD

Lipidized dermatofibromas most commonly are found on the ankles, which has led some authors to refer to these lesions as ankle-type fibrous...

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Article

Pemphigus Vulgaris in Pregnancy

Author:

Kelsey W. Salzberg, MD

Melanie J. Gero, MD

Bruce D. Ragsdale, MD

We report the case of a 34-year-old woman who was diagnosed with pemphigus vulgaris (PV) during pregnancy. The patient presented with widespread...

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Article

Granulomatous Changes Associated With Pigmented Purpuric Dermatosis

Author:

Kelly Morrissey, MD

Misha Rosenbach, MD

Danielle Dehoratius, MD

Granulomatous pigmented purpuric dermatosis (GPPD) is a rare entity with few cases reported in the literature. We report 3 cases of pigmented...

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Dermpath Diagnosis

Subcutaneous Panniculitislike T-Cell Lymphoma

Author:

Anthony J. Kruse, BA

Claudia I. Vidal, MD, PhD

Subcutaneous panniculitislike T-cell lymphoma is a cutaneous lymphoma of α and β phenotype cytotoxic T cells in which the neoplastic cells are...

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Photo Challenge

Yellowish Papulonodular Periorbital Eruption

Author:

Brian Chia, MBBS, MRCP

Hong Liang Tey, MBBS, MRCP, Mrcps

A 66-year-old woman with a history of type 2 diabetes mellitus and mild dyslipidemia presented with persistent lesions over the eyelids and cheeks...

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Article

Glomus Tumor of Uncertain Malignant Potential on the Forehead

Author:

Antonio D’antonio, MD, PhD

Maria Addesso, MD

Alessia Caleo, MD

Malignant glomus tumors (GTs) are rare, and diagnosis requires consideration of specific histologic criteria.

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Case Letter

Adult-Type Langerhans Cell Histiocytosis: Minimal Treatment for Maximal Results

Author:

Vikas Patel, MD

John C. Hall, MD

Kenneth R. Watson, DO

Adult-type Langerhans cell histiocytosis (ALCH) is characterized as a group of disorders associated with abnormal spread and proliferation of...

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Dermpath Diagnosis

Pretibial Myxedema

Author:

Heather M. Holahan, BA

Ronda S. Farah, MD

Brian L. Swick, MD

Pretibial myxedema is a cutaneous mucinosis associated with thyroid dysfunction. The differential diagnosis includes nephrogenic systemic fibrosis...

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Article

Buschke-Ollendorff Syndrome: Sparing Unnecessary Investigations

Author:

Tiziana Surrenti, MD

Francesco Callea, MD

Laura Tanturri De Horatio, MD

Buschke-Ollendorff syndrome (BOS) is an autosomal-dominant disease characterized by the association of connective tissue nevi and osteopoikilosis...

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