purpura of post transfusion

例句：

1. 1. Thepatient developed a purpura on hisleg after the surgery.
   手术后，病人的腿上出现了一个紫癜。
2. 2. The child had apurpura on her arm thatwas caused by a viral infection.
   这个孩子手臂上有一个由病毒感染引起的紫癜。
3. 3.The doctor diagnosed the patient with a purpura and prescribed antibiotics for treatment.
   医生诊断出患者患有紫癜，并开了抗生素进行治疗。