Smooth-muscle tumours of the gastrointestinal tract and retroperitoneal tissues presenting as large cystic masses.
D004064:Digestive System; D006801:Humans; D007414:Intestinal Neoplasms; D009214:Myoma; D009369:Neoplasms; D018235:Smooth Muscle Tumor
DIGESTIVE SYSTEM; INTESTINAL NEOPLASMS; TUMORS, MYOMA