ALECHA GIL, J.; ECHENIQUE-ELIZONDO, M.; AMONDARAIN, J. A.    GORRIZ ARIAS, G.. Epidermoid carcinoma upon pilonidal sinus. []. , 29, 5, pp.55-58. ISSN 0378-4835.

INTRODUCTION: Malignant degeneration of pilonidal sinus is a rare complication observed mainly in recurrent chronic cases of the disease, associated to a very bad prognosis. MATERIAL AND METHODS: We have reviewed 367 patients with simple and complicated pilonidal cysts. We found 3 cases (0.81%) of epidermoid carcinoma. CONCLUSIONS: Pilonidal sinus epidermoid carcinoma is an infrequent disease predicting for very poor outcome.

: Pilonidal sinus; Epidermoid carcinoma.

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