Congenital absence of the internal carotid artery associated with cerebral hemiatrophy, absence of the external carotid artery, and persistence of the stapedial artery.
Teal JS, Rumbaugh CL, Bergeron RT, Segall HD. Congenital absence of the internal carotid artery associated with cerebral hemiatrophy, absence of the external carotid artery, and persistence of the stapedial artery. Am J Roentgenol Radium Ther Nucl Med. 1973 Jul; 118(3):534-45.