Apocrine carcinoma of the breast: distinctive metabolic reprogramming and high-frequency PIK3CA mutations revealed by molecular and immunohistochemical analysis. - Nakamura H; Kukita Y; Kittaka N; Kusama H; Nakayama T; Tamaki Y; Yoshida KI; Kunimasa K; Imamura F; Yagi T (Histopathology, 2026)