Abstract:Carcinoid tumors of the lung may show several growth patterns and cell types. We report here a previously undescribed case of primary pulmonary atypical carcinoid with prominent mucinous stroma, an exceedingly rare variant of carcinoid tumor so far reported only in the thymus. The tumor was discovered in a 50-year-old, non-smoker woman, and pursued an aggressive behavior. The lack of TTF-1 expression and the positive staining with hormonal receptors made the diagnosis very challenging. Differential diagnosis w… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.