It could be a pre-cancerous condition like atypia hyperplasia.

來源: 2009-04-25 19:39:57 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:
If it develops further, it can become carcinoma in situ (like DCIS: ductal carcinoma in situ).

If it is stromal atypia, I think the worry is about phyllodes tumor of the breast.