Traumatic false aneurysm of the superior cerebellar artery simulating posterior fossa tumor

Abstract

An example of traumatic false aneurysm of the right superior cerebellar artery is described. The chronicity of the clinical picture and a positive brain scan strongly suggested a posterior fossa neoplasm; however, the angiographic findings permitted a specific diagnosis to be made.

Management of Anterior Inferior Cerebellar Artery Aneurysms: Endovascular Treatment and Clinical Outcome

“…6,21,24,25,[29][30][31] The etiology of the AICA aneurysm is controversial: hemodynamic stress, embryonic vulnerability, flow-related vascular pathology, and arterial dissection by local trauma or nonspecific inflammation. 29,[32][33][34][35][36][37][38][39] Our study showed that 2 aneurysms were accompanied by AVMs and Moyamoya disease.…”

21 Endovascular Treatment of Posterior Circulation Aneurysms

“…Symptomatic aneurysms arising from the peripheral segments of both supratentorial and infratentorial cerebral arteries are rare and have frequently been noted to stem from either traumatic or mycotic origins (Ferry and Kempe 1972;Cockrill et al 1977;Jellinger 1977;Quattrocchi et al 1990). Peripheral aneurysms involving the superior cerebellar artery are particularly uncommon; findings in two large case series suggest a rate of occurrence of 0.25% to 0.66% of all aneurysms of the posterior circulation Locksley 1966).…”

“…Occlusion of the parent SCA is often required by open surgical treatment Ferry and Kempe 1972;Cockrill et al 1977;Mabuchi et al 1992;McDermott and Sellar 1994), yet it seems to be well-tolerated (Ferry and Kempe 1972;Gacs et al 1983;Mabuchi et al 1992). A number of factors seem to contribute to this intrinsic stability against ischemic damage after occlusion of the SCA.…”

Traumatic Aneurysm of the Superior Cerebellar Artery

“…Only two cases with an aneurysm on the superior cerebellar artery (SCA) following head trauma have been reported in the literature 5,6 . Most traumatic aneurysms are located within the anterior circulation, essentially on the middle cerebral artery and anterior cerebral artery 7,8 .…”

“…Most traumatic aneurysms are located within the anterior circulation, essentially on the middle cerebral artery and anterior cerebral artery 7,8 . The correct diagnosis is most frequently established during surgery 6,9 . Up to now we have not found any case reported with neuroradiological embolization of a Traumatic Aneurysm of the Superior Cerebellar Artery 168 blood or intracerebral hematoma was found.…”