Cystic panfolliculoma of the conchal bowl

Authors

  • John Monroe Norton College of Medicine, Upstate Medical University, Syracuse, NY, USA Author
  • Lindsey J. Gaghan Department of Dermatology, The Warren Alpert Medical School of Brown University, Providence, RI, USA Author
  • John Kawaoka Department of Dermatology, The Warren Alpert Medical School of Brown University, Providence, RI, USA Author
  • Leslie Robinson Bostom Department of Dermatology, The Warren Alpert Medical School of Brown University, Providence, RI, USA , Department of Dermatopathology, The Warren Alpert Medical School of Brown University, Providence, RI, USA Author

DOI:

https://doi.org/10.25251/0d92fd02

Keywords:

adnexal tumor, basal cell carcinoma, cystic panfolliculoma, follicular neoplasm, trichoblastoma

Abstract

Panfolliculomas are rare, benign follicular neoplasms showing differentiation toward all components of the hair follicle. Cystic panfolliculoma (CPF), a histologic variant, is uniquely characterized by epidermal invagination. This lesion is uncommon, with fewer than 25 cases reported in the literature. Clinically and histologically, it can mimic other tumors, including basal cell carcinoma and trichoblastoma, complicating diagnosis. We describe a case of CPF arising in the right conchal bowl of an 84-year-old man, along with a brief review of similar cases.

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Published

03/02/2026

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Section

Case Report / Case Series