Hemangioendothelioma is a rare spectrum of vascular tumors with characteristics intermediate between those of benign, well-differentiated hemangiomas and aggressively malignant angiosarcomas. What is the Pathology of Hemangioendothelioma? The pathology of hemangioendothelioma is:   -Etiology: The cause of hemangioendothelioma is genetic factor.…