So-called “non-classic” ciliated Muconodular papillary tumors: a comprehensive comparison of the Clinicopathological and molecular features with classic ciliated Muconodular papillary tumors

Ciliated muconodular papillary tumors (CMPTs) are characterized by tripartite cellular components of ciliated columnar cells, mucinous cells, and basal cells with predominantly papillary architecture. Some peripheral lung nodules may not demonstrate papillary architecture and tripartite cells that show bronchiolar differentiation; these nodules are termed "CMPTs with non-classic morphology" by some authors. To validate the rationality of "non-classic" CMPTs and to analyze the clinicopathological features of CMPTs, we enrolled 21 cases of lung nodules, comprising classic CMPTs (n=11) and so-called "non-classic" CMPTs (n=10).

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