患者,男,31岁。进行性乏力、左小腿背部,右脚趾发现紫癜二月余,无牙龈、鼻腔出血及发热、厌油、尿色加深史。数日后紫癜自行消失。入院前10天上述紫癜再现,BPC 65×10~9/l,WBC 38.4×10~9/L,周围血象中可见幼稚细胞以急性白血病收住。体检:T37.3℃、P86次、R18次、BP 118/66,左小腿背部右脚趾可见直径2～4mm大小之紫癜及淤斑。两腋下可及数枚花生米大小之淋巴结,无压痛,质中、活动度好。胸骨体压痛显著。余未见异常。实验室检查:RBC3.45× Patient, male, 31 years old. Progressive weakness, left leg back, right toe found in more than two months of purpura, no gums, nasal bleeding and fever, tired of oil, dark urine to deepen the history. Purpura disappear after a few days. 10 days before admission purpura reproduction, BPC 65 × 10 ~ 9 / l, WBC 38.4 × 10 ~ 9 / L, peripheral blood can be seen in naive cells with acute leukemia admitted. Physical examination: T37.3 ℃, P86 times, R18 times, BP 118/66, left toe back toe visible diameter 2 ~ 4mm size of purpura and ecchymosis. Two axillary lymph nodes can reach the size of several peanuts, no tenderness, quality, activity is good. Sternal body tenderness significantly. I no abnormalities. Laboratory examination: RBC3.45 ×