[A case of carotid superior cerebellar artery anastomosis associated with bilateral hypoplasia of the internal carotid artery represented as the rupture of posterior cerebral artery-posterior communicating artery aneurysm]. 1988

T Okuno, and T Nishiguchi, and S Hayashi, and K Miyamoto, and T Terashita, and T Itakura, and H Moriwaki, and N Komai
Department of Neurological Surgery, Wakayama Medical College, Japan.

A rare case of a variant type of the persistent primitive trigeminal artery associated with bilateral hypoplasia of the internal carotid artery was reported. Left common carotid arteriography revealed a thin left internal carotid artery terminated at the ophthalmic artery. Right common carotid arteriography showed that a narrow internal carotid artery gave off several fine vessels to the cavernous portion, and terminated at the right superior cerebellar artery via the prominent persistent primitive trigeminal artery (PTA). Supraclinoid portions of the bilateral internal carotid arteries were not able to be found. Eventually the entire cerebral hemisphere was supplied by the vertebrobasilar system via the posterior communicating artery. The narrowed supraclinoid portion of the left internal carotid artery was confirmed by surgery of the left posterior cerebellar artery-posterior communicating artery aneurysm. This case may provide an important suggestion about the mechanism of the persistence of the primitive trigeminal artery. In an embryo, at the stage of 5-6mm embryo in size, the posterior communicating artery begins to develop and then PTAs begin to dwindle. If the C1- or C2- portion of the internal carotid artery is gradually occluded, the forebrain, which has to be supplied by the internal carotid system, must be supplied retrogradely by the basilar system via the posterior communicating artery. At this stage, however, the vertebral artery has not developed enough to supply the entire central nervous system. Therefore, the PTA can not regress and this results in the postnatal persistence of the primitive trigeminal artery.

UI MeSH Term Description Entries
D008297 Male Males
D002340 Carotid Artery Diseases Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology. Carotid Atherosclerosis,Common Carotid Artery Disease,Internal Carotid Artery Disease,Arterial Diseases, Carotid,Arterial Diseases, Common Carotid,Arterial Diseases, External Carotid,Arterial Diseases, Internal Carotid,Atherosclerotic Disease, Carotid,Carotid Artery Disorders,Carotid Atherosclerotic Disease,Common Carotid Artery Diseases,External Carotid Artery Diseases,Internal Carotid Artery Diseases,Arterial Disease, Carotid,Artery Disease, Carotid,Artery Diseases, Carotid,Artery Disorder, Carotid,Artery Disorders, Carotid,Atherosclerotic Diseases, Carotid,Carotid Arterial Disease,Carotid Arterial Diseases,Carotid Artery Disease,Carotid Artery Disorder,Carotid Atheroscleroses,Carotid Atherosclerotic Diseases,Disorders, Carotid Artery
D002343 Carotid Artery, Internal Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose. Arteries, Internal Carotid,Artery, Internal Carotid,Carotid Arteries, Internal,Internal Carotid Arteries,Internal Carotid Artery
D002531 Cerebellum The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills. Cerebella,Corpus Cerebelli,Parencephalon,Cerebellums,Parencephalons
D002532 Intracranial Aneurysm Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841) Aneurysm, Cerebral,Aneurysm, Intracranial,Basilar Artery Aneurysm,Berry Aneurysm,Brain Aneurysm,Cerebral Aneurysm,Giant Intracranial Aneurysm,Mycotic Aneurysm, Intracranial,Aneurysm, Anterior Cerebral Artery,Aneurysm, Anterior Communicating Artery,Aneurysm, Basilar Artery,Aneurysm, Middle Cerebral Artery,Aneurysm, Posterior Cerebral Artery,Aneurysm, Posterior Communicating Artery,Anterior Cerebral Artery Aneurysm,Anterior Communicating Artery Aneurysm,Middle Cerebral Artery Aneurysm,Posterior Cerebral Artery Aneurysm,Posterior Communicating Artery Aneurysm,Aneurysm, Berry,Aneurysm, Brain,Aneurysm, Giant Intracranial,Aneurysm, Intracranial Mycotic,Aneurysms, Basilar Artery,Aneurysms, Berry,Aneurysms, Brain,Aneurysms, Cerebral,Aneurysms, Giant Intracranial,Aneurysms, Intracranial,Aneurysms, Intracranial Mycotic,Artery Aneurysm, Basilar,Artery Aneurysms, Basilar,Basilar Artery Aneurysms,Berry Aneurysms,Brain Aneurysms,Cerebral Aneurysms,Giant Intracranial Aneurysms,Intracranial Aneurysm, Giant,Intracranial Aneurysms,Intracranial Aneurysms, Giant,Intracranial Mycotic Aneurysm,Intracranial Mycotic Aneurysms,Mycotic Aneurysms, Intracranial
D002533 Cerebral Angiography Radiography of the vascular system of the brain after injection of a contrast medium. Angiography, Cerebral,Angiographies, Cerebral,Cerebral Angiographies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001158 Arteries The vessels carrying blood away from the heart. Artery
D001159 Arterio-Arterial Fistula Abnormal communication between two ARTERIES that may result from injury or occur as a congenital abnormality. Arterio Arterial Fistula,Arterio-Arterial Fistulas,Fistula, Arterio-Arterial,Fistulas, Arterio-Arterial

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