Nasopharyngeal fibroma is a very rare, benign, soft tissue tumor.This disease almost always occurs in young men.It is also called polypoid fibroma or fibromatous polyp.

摘要鼻咽纤是非常罕见良性结缔组织肿，最常发生在男性，也称息肉样纤纤样息肉。

If it is a fibromatous tumor, you need to check mitosis and cytologic atypia carefully to see if it is malignant, like fibrothecoma.Malignant fibrous tumor is very few in ovary.

如果它是纤，你应该象纤卵泡膜一样，需要认真地观察核分裂和细胞异型性以判断它是否恶性，卵巢恶性纤性肿非常少见。