deciduoma malignum

例句：

1. 1. The patient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
2. 2.The doctor advised him to get regular check-ups for early detection of such tumors.
   医生建议他定期检查，以便早期发现这类肿瘤。
3. 3.The diagnosis of this type of tumor is often difficult due to its similarity to other types of cancer.
   这种肿瘤的诊断往往很困难，因为它与其他类型的癌症相似。