例１，姐姐，１６岁（发病时）。全身骨关节疼痛伴发热、气促２周，无特殊用药及毒物、放射线接触史，家族中父母、兄弟均体健。于１９８８年１０月２０日住本院。体查：Ｔ３８．６℃，皮肤可见散在出血点、瘀斑，周身浅表淋巴结不大，中度贫血貌，双扁桃体Ⅰ°肿大，胸骨... Case 1, sister, 16 years old (onset). The bone and joint pain in the whole body was accompanied by fever and shortness of breath for 2 weeks. There was no special medication and noxious substance, and radiation exposure history. Parents and brothers in the family were all healthy. He lived in this hospital on October 20, 1988. Physical examination: T38.6 °C, the skin can be seen in the bleeding, petechiae, the superficial lymph node is not large, moderate anemia, double tonsil I ° enlargement, sternum ...