title: Sclerosing hemangioma of the lung: an endothelial or epithelial neoplasm?
abstract: The ultrastructural features of a sclerosing hemangioma of the lung in a 34 year old woman are described. The basic cellular response is thought to be endothelial and not epithelial. These conclusions are based on the finding of Weibel-Palade bodies within the tumor cells in addition to other characteristics generally associated with endothelial cells.
mesh_terms: D000328:Adult; D004727:Endothelium / Q000648:ultrastructure; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology* / Q000648:ultrastructure