Table 1: Histology of duct excision specimens.

HistologyNumber% of total (195)Median age (range)

Malignant 116%68 (32–88)
 IDC42%72 (68–74)
 DCIS74%59 (32–88)
Benign18394%50 (17–84)
 Duct ectasia7639%50 (22–84)
 Papilloma6534%56 (26–84)
 Periductal mastitis2111%39 (17–59)
 Fibrocystic disease126%48 (35–65)
 ADH31%61 (35–76)
 Normal63%43 (24–67)

IDC: invasive ductal carcinoma.
DCIS: ductal carcinoma insitu.
ADH: atypical ductal hyperplasia.