患者女性，５５岁。近半年来间断发热，体温３７℃～３９℃，伴四肢乏力，口眼干燥，进干食困难，食欲减退，夜尿增多，无肌肉及关节疼痛，抗生素治疗无效。一周前出现明显腹胀，不思饮食，于１９９５年１２月５日入院，体检：体温３７．６℃，体质消瘦，皮肤干燥，右下肺... Patient female, 55 years old. Intermittent fever in the past six months, body temperature 37 ℃ ~ 39 ℃, with limb weakness, dry eye mouth, into the dry food, loss of appetite, increased nocturnal, muscle and joint pain, antibiotic therapy ineffective. A week ago obvious bloating, no diet, admitted on December 5, 1995, physical examination: body temperature 37.6 ℃, weight loss, dry skin, lower right lung ...