papillary carcinoma

例句：

1. 1. The patient's tumor was classified as a papillary carcinoma.
   患者的肿瘤被分类为乳头状癌。
2. 2. Papillary carcinoma is a rare form of cancer that can occur in the breast.
   乳头状癌是一种罕见的癌症，可以在乳房中发生。
3. 3. Researchers have found that papillary carcinoma has a higher risk of recurrence compared to other types of cancer.
   研究人员发现，与其它类型的癌症相比，乳头状癌复发的风险更高。