choroidcarcinoma

例句：

1. 1. He was diagnosed with a rare form of cancer that affects the choroid layer of the retina.
   他被诊断出患有一种罕见的癌症，这种癌症影响视网膜的脉络膜层。
2. 2.The patient's condition worsened after surgery, and he was admitted to the hospital for further treatment.
   手术后，患者的病情恶化，被送往医院接受进一步治疗。
3. 3.Early detection and treatment are crucial for the successful management of choroidal cancer.
   早期发现和治疗对于成功管理视网膜癌至关重要。