Figure 1.

Histologic (hematoxylin-eosin) findings of atypical adenomatous hyperplasia of the prostate. (A) Crowded haphazardly arranged variably sized glands with infiltrative appearance of glands at the edges. Original magnification × 200. (B) Predominantly small glands lined by epithelial secretory cells with clear eosinophilic cytoplasm and minimal cytological atypia. Original magnification × 400. (C) Predominantly large glands lined by epithelial secretory cells with clear eosinophilic cytoplasm and minimal cytological atypia. Original magnification × 400. (D) Predominantly large glands lined by epithelial secretory cells with clear eosinophilic cytoplasm, minimal cytological atypia with inconspicuous nucleoli, few focally prominent basally located cells with dense amphophilic cytoplasm, and luminal eosinophilic crystalloids. Original magnification × 600.