Cerebral Hemiatrophy, Hypoplasia of Internal Carotid Artery, and Intracranial Aneurysm

Ruptured Saccular Aneurysm of a Dolichoectatic Internal Carotid Artery in a Patient With Agenesis of the Contralateral Internal Carotid Artery-Case Report-

“…1,8,17) The aneurysm in our case was formed in the contralateral dolichoectatic ICA. A saccular aneurysm in the dolichoectatic artery is very rare, excluding fusiform aneurysm.…”

Ruptured Saccular Aneurysm of a Dolichoectatic Internal Carotid Artery in a Patient With Agenesis of the Contralateral Internal Carotid Artery-Case Report-

“…1,8,17) The aneurysm in our case was formed in the contralateral dolichoectatic ICA. A saccular aneurysm in the dolichoectatic artery is very rare, excluding fusiform aneurysm.…”

Hypoplastic internal carotid artery stenosis with a low-lying carotid bifurcation causing cerebral ischemia

“…In the normal population, the incidence of intracerebral aneurysms is 2% to 4%; in the presence of ICA hypoplasia, this incidence increases to 25% to 34%. 6 In this case, no intracranial aneurysms were identified, but absence of the A1 segment of the ACA was present. Hypoplasia of the A1 segment of the ACA will be present in 10% of the general population, while aplasia, as in this case, is a covariant of normal cerebral arterial circulation in only 2% of the general population.…”

Agenesis of the internal carotid artery with transcavernous anastomosis associated with anterior communicating artery aneurysms

“…The incidence of intracranial aneurysm associated with agenesis or aplasia has been reported as 25-43%, which is much higher than that found in the general population of 2-4%. [10] The Only seven cases of Type D agenesis associated with cerebral aneurysms have been reported, including our present case. [5][6][7][8][9] A summary of the cases is shown in Table 1.…”

Ruptured Saccular Aneurysm of a Dolichoectatic Internal Carotid Artery in a Patient With Agenesis of the Contralateral Internal Carotid Artery-Case Report-

“…1,8,17) The aneurysm in our case was formed in the contralateral dolichoectatic ICA. A saccular aneurysm in the dolichoectatic artery is very rare, excluding fusiform aneurysm.…”

Hypoplastic internal carotid artery stenosis with a low-lying carotid bifurcation causing cerebral ischemia

“…In the normal population, the incidence of intracerebral aneurysms is 2% to 4%; in the presence of ICA hypoplasia, this incidence increases to 25% to 34%. 6 In this case, no intracranial aneurysms were identified, but absence of the A1 segment of the ACA was present. Hypoplasia of the A1 segment of the ACA will be present in 10% of the general population, while aplasia, as in this case, is a covariant of normal cerebral arterial circulation in only 2% of the general population.…”

Agenesis of the internal carotid artery with transcavernous anastomosis associated with anterior communicating artery aneurysms

“…The incidence of intracranial aneurysm associated with agenesis or aplasia has been reported as 25-43%, which is much higher than that found in the general population of 2-4%. [10] The Only seven cases of Type D agenesis associated with cerebral aneurysms have been reported, including our present case. [5][6][7][8][9] A summary of the cases is shown in Table 1.…”

Ruptured Saccular Aneurysm of a Dolichoectatic Internal Carotid Artery in a Patient With Agenesis of the Contralateral Internal Carotid Artery-Case Report-

“…1,8,17) The aneurysm in our case was formed in the contralateral dolichoectatic ICA. A saccular aneurysm in the dolichoectatic artery is very rare, excluding fusiform aneurysm.…”

Hypoplastic internal carotid artery stenosis with a low-lying carotid bifurcation causing cerebral ischemia

“…In the normal population, the incidence of intracerebral aneurysms is 2% to 4%; in the presence of ICA hypoplasia, this incidence increases to 25% to 34%. 6 In this case, no intracranial aneurysms were identified, but absence of the A1 segment of the ACA was present. Hypoplasia of the A1 segment of the ACA will be present in 10% of the general population, while aplasia, as in this case, is a covariant of normal cerebral arterial circulation in only 2% of the general population.…”

Agenesis of the internal carotid artery with transcavernous anastomosis associated with anterior communicating artery aneurysms

“…The incidence of intracranial aneurysm associated with agenesis or aplasia has been reported as 25-43%, which is much higher than that found in the general population of 2-4%. [10] The Only seven cases of Type D agenesis associated with cerebral aneurysms have been reported, including our present case. [5][6][7][8][9] A summary of the cases is shown in Table 1.…”