患者,男性,50岁。因反复腹泻1年,加重2月,于1997年3月26日收住消化内科。患者一年前无原因大便次数增多,2～3次/日,呈黄色稀糊状便,无脓胨、血液,无腹痛,无里急后重感,无畏寒、发热。未予重视。近2月来大便次数明显增多,5～6次/日,含少许泡沫粘液,曾在当地卫生院拟诊“肠炎”予“黄连素、乐托尔”等治疗,效果不佳。既往无肺结核等特殊病史。查体:体温37.1℃,脉搏85次/分,血压17/10kPa,消瘦,两颈部胸锁乳突肌前缘 Patient, male, 50 years old. Due to repeated diarrhea for 1 year, aggravated in February, he was admitted to digestive medicine on March 26, 1997. The patient had no cause of increased bowel movements a year ago, 2 or 3 times per day. He presented with yellow thin paste, no pustules, no blood, no abdominal pain, no heavy sensation, no chills, and no fever. Not paid attention. In recent months, the number of bowel movements has increased significantly, 5 to 6 times per day, and contains a little foamy mucus. He had been diagnosed with “enteritis” for “berberine, letol” and other treatments at the local health center, and the effect was poor. No previous history of tuberculosis and other special diseases. Physical examination: body temperature 37.1°C, pulse 85 beats/min, blood pressure 17/10 kPa, weight loss, sternocleidomastoid muscle front of both necks