atypia

There is minimal mitotic activity, no atypia and no desmoplasia.

有很少的分裂象，无异型性及组织增生。

Occasionally, lipoblasts can be seen in lipomas, especially near blood vessels.However, they do not exhibit cytologic atypia/hyperchromasia/pleomorphism.

少数情况下，脂胞也能在脂瘤中看到，特别是近血管区域，但是，它们不示胞异型/深染色质/多形性。

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.

如果它是瘤，你应该象泡膜瘤一样，需要认真地观察核分裂和胞异型性以判断它是否为恶性，巢恶性性肿瘤非常少见。