We present a patient with the combination of persistent primitive hypoglossal artery and the origin of left common carotid artery from the brachiocephalic trunk, who had subarachnoid haemorrhage caused by a ruptured aneurysm. The aneurysm was on distal anterior inferior cerebellar artery which was a feeder to cerebellar arterio-venous malformation.
Colloid cysts are rare benign tumors of the third ventricle with diverse clinical presentation, which vary from incidentally found cysts to acute death. An uncommon hemorrhage in these cysts is a life threatening complication which can cause obstructive hydrocephalus with acute deterioration of the patient and sudden death. We present a case of 35-year-old man with large hemorrhagic colloid cyst of a third ventricle causing acute obstructive hydrocephalus even though magnetic resonance image with low T2 signal of the cyst suggested its clinically stable nature. Only 3 cases of in vivo diagnosed hemorrhagic colloid cysts have been reported in the literature.
ÖZKolloid kistler üçüncü ventrikülün nadir benign tümörleri olup tesadüfen bulunan kistlerden akut ölüme kadar çok geniş bir klinik sunum aralığına sahiptir. Bu kistlerde sık görülmeyen bir olay olan kanama obstrüktif hidrosefaliye ve sonuçta hastanın durumunda ani bozulmaya ve ölüme neden olabilen yaşamı tehdit edici bir komplikasyondur. Üçüncü ventrikülde büyük bir hemorajik kolloid kisti olup kistte düşük T2 sinyaliyle manyetik rezonans görüntülemenin klinik olarak stabil bir durum düşündürdüğü akut obstrüktif hidrosefali bulunan 35 yaşında bir erkek sunuyoruz. Literatürde in vivo tanı konmuş sadece 3 hemorajik kolloid kist vakası mevcuttur.anaHtar sÖZcÜkLer: Kolloid kist, Kanama, Üçüncü ventrikül, Hidrosefali
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