Arteriovenous aneurysm of the occipital artery

Abstract

We report an unique case of a giant aneurysm of the occipital artery, with a venous connection to the transverse sinus via an emissary vein. Because of this connection, the term arteriovenous aneurysm is used.

An Occipital Artery Aneurysm Associated with a Transverse-sigmoid Sinus Dural Arteriovenous Fistula

“…Of three patients followed-up, there were no changes after 2 years in one patient, and spontaneous cure was achieved after 1 year in one patient. [8][9][10][11][12][13] Of these, an AVF was present in one patient. 11) The present case is the second report of an occipital aneurysm of a dAVF-feeding artery.…”

“…[8][9][10][11][12][13] Of these, an AVF was present in one patient. 11) The present case is the second report of an occipital aneurysm of a dAVF-feeding artery. The course of the occipital artery involves the posterior surface of the semispinal muscle, superior nuchal line-attached area of the trapezius muscle, tissue below the scalp, and supraoccipital bone.…”

“…To treat aneurysms below the scalp, aneurysmectomy or endovascular treatment is selected. [6][7][8][10][11][12][13] The two procedures are highly safe as treatments for aneurysms below the scalp alone. 6) In the present case, the dAVF is asymptomatic, but the treatment of the subcutaneous aneurysm may be considered, as there is a risk of traumatic hemorrhage.…”

“…They consist of pseudoaneurysms resulting from dull trauma and true aneurysms, which spontaneously develop. 6,7) The incidence of occipital artery aneurysms is low, and 16 patients have been reported ( Table 1): [8][9][10][11][12][13] nine patients with trauma-related aneurysms, one with a surgical operation (iatrogenic)-related aneurysm, two with neurofibromatosis (NF)-1-related aneurysms, one with an aneurysm after occlusion of the internal carotid artery, and three with idiopathic aneurysms. Eight patients underwent aneurysmectomy.…”