重症肌无力合并糖尿病,国内未见报道。近来我院收治一例,报道如下。患者,女,48岁。以多饮、多尿半年,饮水反呛、咀嚼无力25天于1987年8月12日入院。患者半年前觉鼻咽部干燥,饮水增多,安静状态下日饮水量约2升,稍活动增至8～9升,饮食不多,渐消瘦。25天前饮水反呛、吞咽困难、咀嚼无力,特别是连续嘴嚼时无力更明显。查体:神清,消瘦,说话鼻音,咬肌力差,双软腭上提无力,肌疲劳试验阳 Myasthenia gravis with diabetes mellitus, no reports of domestic. Recently admitted to a hospital in our hospital, reported as follows. Patient, female, 48 years old. To drink more, polyuria for six months, drinking choking, chewing powerless 25 days in August 12, 1987 admitted. Six months ago, patients with nasopharynx dryness, increased drinking water, drinking water in quiet state about 2 liters, slightly increased activity to 8 to 9 liters, diet, less weight loss. Anti-choke drinking water 25 days ago, swallowing difficulties, chewing weakness, especially when the continuous chewing weakness more obvious. Physical examination: Shen Qing, weight loss, nasal tone, poor mastectomy, weak palate on the weak, muscle fatigue test positive