title: Malignant hemangioendothelioma of the spleen. A case report with ultrastructural observations.
abstract: A case of malignant hemangioendothelioma of the spleen is reported. Light and electron microscopic evidence suggests that the tumor is a neoplastic proliferation of the two cell types, one resembling the "sinus endothelial" cell of the normal spleen, and the other resembling the "fixed reticular cell" of splenic red pulp.
mesh_terms: D000328:Adult; D004727:Endothelium / Q000473:pathology; D005260:Female; D006390:Hemangioendothelioma / Q000473:pathology* / Q000648:ultrastructure; D006529:Hepatomegaly / Q000175:diagnosis; D006801:Humans; D012156:Reticulocytes / Q000473:pathology; D013160:Splenic Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D013163:Splenomegaly / Q000175:diagnosis