title: Pulmonary blastoma. Immunohistochemical and ultrastructural studies of a case.
abstract: The immunohistochemical and ultrastructural features of a case of pulmonary blastoma in a 39-year-old woman are documented. Three types of cells were observed: epithelial, mesenchymal and 'blastomatous'. The latter stained with intermediate filament antibodies similar to those of mesenchymal and epithelial elements, thus supporting the hypothesis that this tumour is derived from a pluripotent undifferentiated element.
mesh_terms: D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007120:Immunochemistry; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D008854:Microscopy, Electron