Rare Case of a Malignant Proliferating Trichilemmal Tumor: A Case Report

Elias Fakhoury, Anthony Cruz, Gary Kuehl, Matthew D’Alessio

Abstract


Proliferating Trichilemmal tumors (PTT) are rare neoplasms of the external root hair sheath that are largely benign. The potential for PTT to undergo transformation to a Malignant Proliferating Trichilemmal Tumor (MPTT) is unknown, with only about 40 cases of MPTT having ever been reported. We present an exceedingly rare case of a 22-year-old female who presented with an 8 cm mass of her anterior chest which was initially diagnosed as a squamous cell carcinoma and later classified as malignant proliferating trichilemmal tumor. In this case report we discuss the diagnosis, histo-pathological characteristics, and surgical treatment of such tumors.




J Med Cases. 2013;4(3):182-184
doi: https://doi.org/10.4021/jmc1007e

Keywords


Malignant Proliferating Trichilemmal tumor; Proliferating Trichilemmal tumor; Squamous cell carcinoma; Pilar tumor; Epidermoid cyst

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