Fig. 1From: Laparoscopic surgical management of a mature presacral teratoma: a case reportColonoscopy and endoscopic ultrasound. a No rectal submucosal tumor is seen on colonoscopy. b The endoscopic ultrasonography (EUS) shows a hypo- and anechoic multilocular mass measuring 20 mm in diameter with clear boundaries. c Only the cyst wall is enhanced on contrast-enhanced ultrasonography (CE-US)Back to article page