Presacral epidermoid cyst: report of a case.

An asymptomatic tumor in the pelvis was incidentally found by ultrasonography in a 67-year-old woman while being examined after presenting with a common cold. Further examinations revealed a presacral cystic tumor, which measured 10 x 12cm in size. The cyst was thus removed in the normal manner for such cases. The pathological diagnosis was an epidermoid cyst. An analysis of 15 other cases previously reported in the literature indicated that large epidermoid cysts should normally be excised through an abdominal approach alone, provided that the tumor is benign.