ductal intraepithelial neoplasia

ductal intraepithelial neoplasia

Pathology A range of preneoplasia that arises in the ductal epithelium of the breast; the DIN schema is intended to standardize the language used by various pathologists, restricting the term carcinoma to those neoplasms that have extended beyond the ductal basement membrane. Cf Breast cancer, Cervical intraepithelial neoplasia.

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.