chondrosarcomatosis

例句：

1. 1. The patient had a rare form of cancer that was difficult to diagnose.
   这位病人患有一种罕见的癌症，诊断起来非常困难。
2. 2.This type of cancer is often found in children and teenagers, especially those with a family history.
   这种癌症通常在儿童和青少年中被发现，特别是那些有家族病史的人。
3. 3. Treatment for this type of cancer involves surgery, radiation therapy, and sometimes chemotherapy.
   治疗这种癌症的方法包括手术、放疗和有时的化疗。