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- 63-year-old woman with firm, violaceous plaques in the gluteal area
Interactive Case Study - April 2026




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Acknowledgements
The authors gratefully acknowledge Dr. Karishma Desai, Dr. Tim Holland, and Dr. Ronald P. Rapini of Department of Dermatology, University of Texas McGovern Medical School at Houston, for their expertise and contributions to this case.
Author Profiles
Hong Yu, MD, PhD
Department of Pathology and Immunology, Baylor College of Medicine
Hong Yu is a PGY-2 pathology resident at Baylor College of Medicine (BCM) with interests in dermatopathology. She completed her medical education at Southwest Medical University, earned her PhD from the University of Missouri, and has experience in next-generation sequencing. Her research focuses on Spitz melanocytomas.
Mokhtar Abdelhammed, MD
Department of Pathology and Immunology, Baylor College of Medicine
Mokhtar Abdelhammed is a PGY3 pathology resident at Baylor College of Medicine (BCM). He completed his medical education and molecular research scholarship at Cairo University School of Medicine and University of California San Diego (UCSD), respectively. His dermatopathology research focus on molecular characterization of melanocytic, adnexal, and soft tissue neoplasms.
Natasha K. Klimas, MD
Department of Dermatology, University of Texas McGovern Medical School at Houston
Dr. Natasha Klimas, MD is Board certified by the American Board of Dermatology and specializes in dermatology and dermatopathology. Dr. Klimas completed her residency at Texas Tech Health Sciences Center and a fellowship in dermatopathology at Texas Tech Health Sciences Center. Her areas of clinical interest include clinical manifestations and dermatopathology of lupus, dermatomyositis, morphea, scleroderma, sarcoidosis, vasculitis, and HIV dermatology.
Question:
63-year-old woman with firm, violaceous plaques in the gluteal area
Category
Deposition Disorders
Description