crateriform ulcer

例句：

1. 1. The patient had a crateriform ulcer on his leg thatrequired immediate medical attention.
   这名患者腿上有一个马蹄形溃疡，需要立即医疗关注。
2. 2. Thedoctor found a crateriformulcer in the patient's stomachand prescribed antibiotics to treat it.
   医生在患者的胃中发现了一个马蹄形溃疡，并开了抗生素来治疗它。
3. 3. After severaldays of treatment, the patient'scrateriform ulcer beganto heal.
   经过几天的治疗，患者的马蹄形溃疡开始愈合了。