title: Oncocytic carcinoid of lung: an ultrastructural analysis.
abstract: A 52-year-old man with a typical carcinoid tumor of the lung in which the tumor cells displayed marked oncocytic metaplasia is presented. The clinicopathologic and ultrastructural differences with so-called oncocytic of the lung are discussed. The potential of Kulchitsky cell derivatives to undergo oncocytic metaplasma is documented ultrastructurally.
mesh_terms: D002276:Carcinoid Tumor / Q000473:pathology / Q000648:ultrastructure*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D008297:Male; D008679:Metaplasia / Q000473:pathology; D008875:Middle Aged