An Adult Case of Adult Presacral Dermoid Cyst

Abstract

A 20-year-old woman consulted the department of gynecology in our hospital because of abdominal pain. US and MRI revealed a cystic tumor in the presacral region and she was refered for surgery. Subsequent CT and PET suggested a congenital cystic tumor which did not invade the colon or rectum. The tumor was removed by the trans-sacral approach and diagnosed as a dermoid cyst, with no malignancy. Masses in the presacral region are rare in adults, and this is only the 14th case of dermoid cyst reported in Japan.