lichen planus obtusus

例句：

1. 1. He noticed a small bump on the surface of the skin, which was later diagnosed as lichen planus obtusus.
   他注意到皮肤表面有一个小肿块，后来被诊断为苔藓样扁平苔藓。
2. 2. The patient's condition worsened after receiving treatment for lichen planus obtusus.
   患者在接受治疗后，病情恶化了。
3. 3. Lichen planus obtusus is a rare but serious skin condition that can cause pain and discomfort.
   苔藓样扁平苔藓是一种罕见的但严重的皮肤状况，可能会导致疼痛和不适。