Callosomarginal artery

Fig.5.6e-I. Various locations of aneurysms (continued), e Small basilar trunk aneurysm and aneurysm at the PI segment, f Basilar tip aneurysm, g Acorn aneurysm, h ICA aneurysm at the origin of the Pcom artery, so-called Pcom aneurysm, i Aneurysm at the bifurcation of the pericallosal and callosomarginal artery, so-called pericallosal aneurysm, j MCA bifurcation aneurysm, k ICA aneurysm at the origin of the ophthalmic artery, so-called paraophthalmic aneurysm. I Distal carotid bifurcation aneurysm...

Distal anterior cerebral artery aneurysms are rare, accounting for about 4.5% of all intracranial aneurysms (Inci et al. 1998), and usually arise at the bifurcation of the pericallosal and callosomarginal arteries. SAH due to rupture of a distal anterior cerebral artery aneurysms is frequently associated with ICH in and/or along the corpus callosum and anterior interhemispheric fissure and subsequent intraventricular hemorrhage. 

Fig. 5.62a-c. Before and after endovascular treatment of a small aneurysm of the pericallosal artery aneurysmogra-phy revealed a very close relationship of the aneurysm and the callosomarginal artery... 

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