The microtubule-associated protein 1 light chain 3 (LC3A) is an essential component of the autophagic vacuoles and LC3A immunohistochemistry renders three patterns of autophagic expression in breast carcinomas: diffuse cytoplasmic, perinuclear and ‘stone-like’ intracellular structures (SLS). Here, MAP1LC3A is linked to breast carcinoma.