endothelioma

(en’’do-the-le-o’mah) [Gr. within + θηλή nipple + -wua tumor]. A tumor arising from the endothelial linings of blood-ve els hemangio-endothelioma), lymphatics (Lym phangioendothelioma), or serous cavities. Θ. cap’it is, a large multiple endothelioma on the scalp. dural e., a tumor formed from the endothelial cells lining the arachnoid or subdural space.