Posttraumatic giant proliferating trichilemmal cysts on the parietal region of the scalp.

Abstract
Proliferating trichilemmal (pilar) cysts, also known as pilar tumors, are most commonly found on the scalp of elderly women. Proliferating trichilemmal cysts are rare, slowly growing, lobular masses inherited autosomal dominantly and localized on scalps, and believed to arise due to a complication of a trauma and inflammation, and 5-10% of people are reported to be effected. Herein, we present the case of a 70-year-old woman with a 23-year history of multiple enlarging scalp masses. Clinically, squamous cell carcinoma was considered in the differential diagnosis, and the lesion was totally excised. Our case emphasizes the necessity for detailed clinical and pathological correlation for differential diagnosis.
Description
Keywords
Elderly women, pilar tumor, proliferating trichilemmal (pilar) cysts, squamous cell carcinoma
Citation
Erdem Havva, Yildirim Umran, Uzunlar Ali Kemal, Sahiner Cem, Ozcelik Derya, Toplu Gaye. Posttraumatic giant proliferating trichilemmal cysts on the parietal region of the scalp. Indian Journal of Dermatology, Venereology and Leprology. 2011 Nov-Dec; 77(6): 707-709.