Figure 1.

Histological features of the carcinomatous breast (magnification × 100). Detailed histology of (a) is seen in (b–d). AS, anucleate squames; asterisks, interstitial lymphocytic infiltrates; G, galactophore; K, keratin; LS, lactiferous sinus; LD, lactiferous duct; SG, sebaceous gland (tangenial cut); SGD, sweat gland duct; SH, simple epithelial hyperplasia; PH, papillary epithelial hyperplasia.