What is the etiology of arteriovenous malformations in the scalp?
Congenital or acquired (e.g. trauma).
CT angiography of the brain and neck shows multiple subgaleal dilated tortuous varicose vessels predominantly on the left side of the scalp soft tissues, which present avid uptake of contrast medium. These vessels drain into the external jugular veins and produce an irregular appearance of the skin; findings of arterio-venous malformation of the scalp (cirsoid aneurysm).
Persistence of right intraparenchymal hemorrhage without significant changes with respect to the admission study.
3D reconstruction CT angiography shows multiple dilated and tortuous varicose vessels at the level of the soft tissues of the scalp.