女,7岁,1992年10月7日因脸色苍白一月,发热十天入院。体检:T37.2℃、P120/min。R24/min,神萎,消瘦,苍白。左小腿外侧皮肤有1×1cm~2瘀斑。浅表淋巴结无肿大。头颅五官端正。咽及扁桃体无异,颈软,胸骨轻压痛。心肺正常。腹软,肝右肋下4cm,剑突下2cm,质软,无压痛。脾未触及。四肢关节活动正常,无叩痛。血红蛋白60g/L.血小板47×10~9/L。白细胞22.8×10~9/L中性0.04,淋巴 Female, 7 years old, October 7, 1992 Because of his pale face in January, fever ten days admitted. Physical examination: T37.2 ℃, P120 / min. R24 / min, Shen Wei, weight loss, pale. Left lateral leg skin with 1 × 1cm ~ 2 ecchymosis. Superficial lymph nodes without swelling. Headshot facial features. Pharyngeal and tonsil no different, soft neck, tender sternum tenderness. Cardiopulmonary normal. Abdominal soft, right ribs under the liver 4cm, 2cm under the xiphoid, soft, no tenderness. Spleen not touched. Joint activities of the limbs normal, no percussion pain. Hemoglobin 60g / L. Platelets 47 × 10 ~ 9 / L. WBC 22.8 × 10 ~ 9 / L Neutral 0.04, Lymph