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Intraductal carcinoma of the breast (1960–1969)

One‐hundred and twelve patients with intraductal carcinoma of the breast were studied. This lesion was more commonly seen in elderly patients and Negro females than lobular carcinoma in situ. The lesion is histologically multicentric in origin. Three fourths of the lesions were accompanied with benign or atypical papillomatosis or duct hyperplasia. It often requires paraffin section examination of the surgical specimen to establish diagnosis. Total removal of the breast tissue with adjacent lymph nodes is the treatment of choice. There was one patient with positive axillary lymph nodes and one patient who died with metastases in this study.