erythema gangrenosum

例句：

1. 1.He developed a rash that resembled erythema gangrenosum.
   他出现了一种类似于瘀伤性红斑的皮疹。
2. 2.The patient's condition worsened to the point of needing erythema gangrenosum treatment.
   患者的病情恶化到了需要治疗瘀伤性红斑的程度。
3. 3. The doctor prescribed an anti-inflammatory medication for the patient's erythema gangrenosum.
   医生为患者开了一种抗炎药物来治疗瘀伤性红斑。