MUC5AC and neoplasm: The term PMP encompasses a spectrum of peritoneal mucinous dissemination, ranging from acellular mucin deposits with indolent behavior to highly aggressive forms with high-grade invasive tumor cells. Consequently, using the single term “PMP” may be inadequate for diagnostic and prognostic precision. To differentiate the morphological variants of PMP, a classification based on histological features, distinguishing two main categories: disseminated peritoneal adenomucinosis (DPAM) and PMCA [11].