摘要
Objective To discuss the diagnosis of follicular dendritic cell sarcoma (FDCS) of the appendix, clinicopathologic features and the treatment. Methods A case of postoperative recurrent FDCS deriving from the appendix was reported. The pathological changes and immunohistochemistry were evaluated. Results The histopathology of the specimen obtained from the recurrent tumor was identical with that of the first laparotomy. Immunohistochemically, the tumor cells were positive for CD21, CD35,