Ciliated muconodular papillary tumor of the lung: a newly defined peripheral pulmonary tumor with conspicuous mucin pool mimicking colloid adenocarcinoma: a case report and review of literature.

Abstract excerpt

We report the case of a 68-year-old man with a newly defined rare entity of a peripheral pulmonary tumor, consisting of a nodular papillary lesion with papillary structures containing ciliated columnar and goblet cells, as well as floating tumor cells in the mucin pool. The conspicuous mucin pool was observed to be mimicking colloid adenocarcinoma in a low-power view, particularly in a frozen section slide. We...

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