title: Pulmonary blastoma: an ultrastructural study emphasizing intestinal differentiation in lung tumors.
abstract: Features of intestinal differentiation, including the presence of brush borders, have been described previously in a pulmonary blastoma following xenotransplantation in athymic nude mice. This paper reports similar findings in a pulmonary blastoma subjected directly to electron microscopic study. Ultrastructural manifestations of intestinal differentiation in other types of primary lung tumors are also discussed.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000648:ultrastructure; D004707:Endoderm / Q000648:ultrastructure; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D008297:Male; D008637:Mesenchymoma / Q000648:ultrastructure*; D008854:Microscopy, Electron