Abstract

Tail gut cysts are rare congenital lesions located in retrorectal area arising from the vestiges of the embryonic hindgut and often present in middle-aged women with perirectal symptoms. Although tail gut cysts are usually benign congenital lesions, malignant transformation has been rarely reported. In this case report we present a 48 year-old woman who was admitted to hospital with an asymptomatic palpable perirectal mass for two months. The radiological appearance of tail gut cyst was three lobulated and it was successfully excised with combined perineal and abdominal approaches.