Angiography demonstrated that the pathological process in Kaposi's idiopathic hemorrhagic sarcoma is related to the vascular system. It was a reliable indicator of the therapeutic response of Kaposi's sarcoma to orthovoltage therapy.
Wechsler HL. Kaposi's SarcomaAngiographic Findings Before and After Orthovoltage Treatment. Arch Dermatol. 1967;96(1):69-70. doi:10.1001/archderm.1967.01610010075013