Rare Case of Giant Proliferating Trichilemmal Tumor Behind Left Shoulder: A Case Report

Abdul Ahad Riaz; Faisal Naseer; Allahdad Khan; Muhammad Asjad Sheikh; Linta Malik; Aseel Kamal; Anam Malik

doi:10.1002/ccr3.70040

Rare Case of Giant Proliferating Trichilemmal Tumor Behind Left Shoulder: A Case Report

Clin Case Rep. 2025 Jan 2;13(1):e70040. doi: 10.1002/ccr3.70040. eCollection 2025 Jan.

Authors

Abdul Ahad Riaz¹, Faisal Naseer², Allahdad Khan¹, Muhammad Asjad Sheikh¹, Linta Malik¹, Aseel Kamal³, Anam Malik⁴

Affiliations

¹ Department of Medicine Nishtar Medical University Multan Pakistan.
² Department of Plastic Surgery Nishtar Medical University Multan Pakistan.
³ Faculty of Medicine University of Gezira Faculty of Medicine Wad Madani Sudan.
⁴ Department of Pathology Nishtar Medical University Multan Pakistan.

Abstract

Proliferating trichilemmal tumor (PTT) is a rare, benign adnexal tumor of hair follicles that commonly mimics malignancy. Excellent outcomes can be achieved with early surgical excision. Delayed presentations-as in this giant shoulder PTT-are made possible, in part, by patient education and healthcare accessibility in low-resource settings.

Keywords: dermatology; pilar cyst; plastic surgery; proliferating trichilemmal tumor; shoulder; trichilemmal cyst.