Urachal cyst in the adult: ultrasound diagnosis

Unachal anomalies requiring clinical attention are rare, and most occur in early childhood [1]. Our review of the radiobogic literature revealed no reports of unachal cysts in adulthood, and no gray scale ultrasound depictions of the lesion [2, 3]. Sanders et al. [2] reported one probable urachal cyst in an infant, and Han and Witten [3] descnibed a urachal carcinoma. Both lesions were imaged with bistable equipment. We recently encountered a case in which the classic signs and symptoms were absent, the physical examination and conventional nadiognaphs were normal, and the ultrasound examination was diagnostic.