患者男性，１４岁，学生，于１９９７年８月１１日入院。患者近１年来无明显诱因逐渐出现双眼睑下垂，眼裂变小，自觉四肢肌肉增粗变硬，伴有脱发，容易疲劳，腹部较以前增大，学习成绩下降。其母亲认为患者“长大后模样变了”，“肌肉长结实了”。无头痛、呕吐，四肢无疼... Patient Male, 14 years old, student, admitted on August 11, 1997. Patients in the past year there is no obvious incentive for gradual double eyelid ptosis, fissure smaller, conscious limb thickening and hardening, accompanied by hair loss, fatigue, abdominal increased than before, academic performance decline. His mother thought the patient “looks like a grown-up,” “muscle grows strong.” No headache, vomiting, painless limbs ...