All these changes may produce palpable breast lumps, from those associated with completely innocuous processes, to those associated with a higher risk of carcinoma.
Fibrocystic changes encompass a wide range of morphologic features.
Lesions range from those that are primarily cystic, to those with an overgrowth of fibrous stroma. Overall, fibrocystic changes are very pleomorphic , with different patterns occurring even within the same lesion.