Symptom included paroxysmal bellyache (90 0%), abdominal mass (64 7%), nausea and vomit (58 0%), hematochezia (20 7%), constipation (10%) and symptom triad of bellyache , mass and hematochezia (15 3%).

• 15 0例中具有阵发性腹痛者 135例 ( 90 0%25 ) ,腹部肿块 97例 ( 6 4 7%25 ) ,恶心呕吐 87例 ( 5 8 0%25 ) ,血便 31例 ( 2 0 7%25 ) ,顽固性便秘 15例 ( 10 0%25 ) ; 15 0例中同时具有腹痛、腹块、血便者 2 2例 ( 15 3%25 )。