1　病例简介患者 ,男性 ,2 8岁、已婚 ,以右下腹包块 4个月收入我院。患者于 4个月前始出现右下腹部阵发性隐痛、恶心 ,无腹泻、脓血便、呕吐、发热等症状 ;发病以来体重减轻 2ｋｇ。查体 :未触及肿大浅表淋巴结 ,心、肺、肝、脾均未发现异常 ,腹部平坦 ,腹肌软 ,右下腹部触及 1 Cases: Patients, male, 28 years old, married, 4 months income from the right lower abdomen. The patient developed paroxysmal pain in the right lower abdomen, nausea, no diarrhea, purulent blood, vomiting, fever, etc., 4 months before the onset; weight loss was 2 kg since the onset. Physical examination: no enlargement of superficial lymph nodes, no abnormalities found in heart, lung, liver and spleen, flat abdomen, soft abdominal muscles, and touch in the right lower abdomen