ichthyosis vulgaris

例句：

1. 1. The patient had a rare form of ichthyosis that made it difficult for him to walk.
   这位病人患有一种罕见的鱼鳞病，这使得他很难走路。
2. 2. The ichthyosis was caused by an autoimmune disorder.
   这种鱼鳞病是由自身免疫疾病引起的。
3. 3. The doctor prescribed a cream for the patient's ichthyosis.
   医生为患者的鱼鳞病开了一种药膏。