Ukuvuvukala kwe-intracranial yi-hypertrophic phenomenon eyenzeka endaweni lapho kuhlukana khona umthambo ongaphakathi. Kuyisifo esitholakalayo futhi ngokuvamile sivela njenge-oval noma i-cystic lesion [1]. Ngenxa yokushoda kwamasampula ocwaningo anele, okwamanje singaqagela kuphela mayelana nezigameko ze-intracranial aneurysms kuso sonke isibalo sabantu kusukela enanini elincane lezifundo zokubheka emuva kanye nezilindelekile ze-autopsy. Ukuvama kwe-intracranial aneurysms emphakathini kulinganiselwa ukuthi cishe ku-1% -6% [2,3] futhi ezinganeni nasezinganeni ezincane lesi sifo asivamile. Ucwaningo olufanele lwe-autopsy kanye ne-imaging lubonise ukuthi indawo evame kakhulu ye-intracranial aneurysms ise-bifurcation ye-basal cerebral artery, ikakhulukazi indawo e-bifurcation etholakala noma eduze kwesiyingi sika-Willis [4]. Cishe i-80% kuya ku-85% ye-aneurysms ivela ekujikelezeni kwangaphambili, iningi lazo litholakala lapho kuhlangana khona umthambo wangaphakathi we-carotid kanye nomthambo ongasemuva othintana naye, kodwa futhi kwenzeka ku-trisection ye-anterior communicating artery noma i-cerebral artery ephakathi. . Ngokuphambene, ama-aneurysms ajikelezayo ngokuvamile avela ezindaweni ezihlanganisa i-basilar artery, noma lapho kuhlangana khona umthambo we-vertebral kanye ne-ipsilateral posterior inferior inferior cerebellar artery [5-7]. Ulwazi oluningiliziwe lubonisa ukuthi cishe u-20% -36% we-aneurysms atholakala emithanjeni yokuxhumana yangaphambili kanye ne-anterior cerebral artery, kanti i-11% -40% itholakala engxenyeni ye-siphon ye-carotid artery yangaphakathi, i-terminus yomthambo wangaphakathi we-carotid. . , kanye nemvelaphi yomthambo ongasemuva othintanayo. , 15% -31% atholakala emthanjeni ophakathi wobuchopho. Ngaphezu kwalokho, cishe i-10% -30% ye-aneurysms itholakala ku-arterioles ye-cerebral. Ama-aneurysms amaningi e-intracranial (imvamisa engu-2-3) enza u-20% -30% yenani eliphelele lama-aneurysms. Ezimweni ezimbalwa kakhulu ezingazodwa, kuye kwabikwa ukuthi ezinye iziguli zahlushwa ama-aneurysms ayi-13 [8-10].
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