Biomaterial Database

[Hypoplasia of the left internal carotid artery associated with anterior communicating aneurysm, intercarotid anastomosis and left rete carotidis]. 1996

Y Tanaka, and T Masuzawa, and I Kitano, and T Matsumoto

Department of Surgical Neurology, Jichi Medical School, Tochigi, Japan.

Hypoplasia of the internal carotid artery with cerebral aneurysm is extremely rare. The authors report a case of hypoplasia of the left internal carotid artery associated with anterior communicating aneurysm, intercarotid anastomosis and left rete carotidis. A 45-year-old man was admitted to Minamata Municipal Hospital because of severe headache and disturbance of consciousness. CT scan showed subarachnoid hemorrhage with intracerebral hematoma. Right carotid angiogram showed the anterior communicating aneurysm arising from the right A1-A2 corner and intercarotid anastomosis on the cavernous portion. The distal part from the C4 portion of the left internal carotid artery was revealed through these anastomotic vessels. Left carotid angiogram showed hypoplasia of the left internal carotid artery and unusual tortuous collateral vessels arising from the left internal maxillary artery, ascending pharyngeal artery and its branches to the left internal carotid artery. These collateral vessels are called "rete carotidis" or "rete mirabile caroticum." Both the intercarotid anastomosis and rete carotidis are unusual anastomotic vessels and are considered not to appear during normal development of the cranial circulation in humans. CT scan with skull base bone target image showed hypoplasia of the left carotid canal. In this case, the change in cranial circulation due to hypoplasia of the internal carotid artery was considered one of the main factors in the development of these unusual anastomotic vessels and cerebral aneurysm.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009880	Ophthalmic Artery	Artery originating from the internal carotid artery and distributing to the eye, orbit and adjacent facial structures.	Arteries, Ophthalmic,Artery, Ophthalmic,Ophthalmic Arteries
D002339	Carotid Arteries	Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.	Arteries, Carotid,Artery, Carotid,Carotid Artery
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
D013345	Subarachnoid Hemorrhage	Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.	Hemorrhage, Subarachnoid,Perinatal Subarachnoid Hemorrhage,Subarachnoid Hemorrhage, Aneurysmal,Subarachnoid Hemorrhage, Spontaneous,SAH (Subarachnoid Hemorrhage),Subarachnoid Hemorrhage, Intracranial,Aneurysmal Subarachnoid Hemorrhage,Aneurysmal Subarachnoid Hemorrhages,Hemorrhage, Aneurysmal Subarachnoid,Hemorrhage, Intracranial Subarachnoid,Hemorrhage, Perinatal Subarachnoid,Hemorrhage, Spontaneous Subarachnoid,Hemorrhages, Aneurysmal Subarachnoid,Hemorrhages, Intracranial Subarachnoid,Hemorrhages, Perinatal Subarachnoid,Hemorrhages, Spontaneous Subarachnoid,Hemorrhages, Subarachnoid,Intracranial Subarachnoid Hemorrhage,Intracranial Subarachnoid Hemorrhages,Perinatal Subarachnoid Hemorrhages,SAHs (Subarachnoid Hemorrhage),Spontaneous Subarachnoid Hemorrhage,Spontaneous Subarachnoid Hemorrhages,Subarachnoid Hemorrhage, Perinatal,Subarachnoid Hemorrhages,Subarachnoid Hemorrhages, Aneurysmal,Subarachnoid Hemorrhages, Intracranial,Subarachnoid Hemorrhages, Perinatal,Subarachnoid Hemorrhages, Spontaneous
D017536	Carotid Artery, Common	The two principal arteries supplying the structures of the head and neck. They ascend in the neck, one on each side, and at the level of the upper border of the thyroid cartilage, each divides into two branches, the external (CAROTID ARTERY, EXTERNAL) and internal (CAROTID ARTERY, INTERNAL) carotid arteries.	Common Carotid Artery,Arteries, Common Carotid,Artery, Common Carotid,Carotid Arteries, Common,Common Carotid Arteries