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Acta Médica Costarricense
On-line version ISSN 0001-6002Print version ISSN 0001-6012
Abstract
YU-TSENG, Fulin; CHAVES-LAVAGNI, Mónica; ZUNIGA-ZUNIGA, Jose Pablo and COB-GUILLEN, Alejandro. Proliferating Trichilemmal Tumor. Acta méd. costarric [online]. 2015, vol.57, n.3, pp.149-151. ISSN 0001-6002.
Proliferating trichilemmal tumor is a rare cutaneous neoplasm originating from the outer root sheath of a hair follicle. It is usually benign, tends to recur and cases of malignant transformations have been reported in worldwide literature. Our case relates to a 59-year-old female with a slow-growth exophytic nodular lobulated tumor with a 5-year development and recurrences after 3 previous surgeries. Clinical imaging showed no skull or cerebral involvement. The biopsy showed proliferating squamous cell clusters in dermis separated by fibrous tissue in the epidermis. Surgical excision is the best choice of treatment for this disease.
Keywords : Proliferating trichilemmal tumor; trichilemmal cyst; neoformation.