病例:男,30岁。下腹胀痛、进行性消瘦伴不规则低热两月余,偶感尿急,无尿痛及血尿。否认结核病史,无下腹部手术及外伤史,三年前有“慢性膀胱炎”病史。入院前经省级专科医院教授会诊及B超重复检查,诊断为“腹盆腔肿瘤”。入院时体格检查:营养差,慢性消耗性病容。左侧腹股沟可触及四枚肿大淋巴结,各自独立、无粘连,无压痛。左下腹饱满,腹肌略紧,可 Case: Male, 30 years old. Abdominal pain, progressive thinning with irregular fever more than two months, occasionally urgency, no dysuria and hematuria. Denied the history of tuberculosis, no history of abdominal surgery and trauma, three years ago, “chronic cystitis” history. Before admission by the provincial specialist hospital professor consultation and B-repeat examination, diagnosed as “abdominal pelvic tumor.” Physical examination on admission: poor nutrition, chronic consumptive disease. Left groin can reach four enlarged lymph nodes, each independent, no adhesions, no tenderness. Left lower quadrant full, abdominal slightly tight, can be