Fuadhi Rifky, Albertus Ari Adrianto, Martahadinan. Unveiling Peutz-Jeghers Syndrome in the Fourth Decade: A Rare Case of Colorectal-Predominant Polyposis and High-Grade Dysplasia without Pathognomonic Pigmentation. Bioscmed. 2026;10(5):1882-1895. doi:10.37275/bsm.v10i5.1587