León Crespo KV, Coronel Montero JS, León Crespo KS. Case report: metaplastic breast carcinoma with pure squamous epithelial component and PIK3CA mutation. AD [Internet]. 2023Jul.20 [cited 2026Jun.23];6(3):84-8. Available from: https://doi.org/10.33262/anatomiadigital.v6i3.2617