Internal carotid artery hypoplasia

Osborn, Robin E.; Mojtahedi, Saeid; Hay, Thomas C.; Dewitt, John D.

doi:10.1016/0730-4862(86)90032-6

Cited by 24 publications

(24 citation statements)

References 10 publications

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“…Inasmuch as sufficient collateral circulation renders patients with ICA agenesis or hypoplasia free of symp- Himi/Akiba/Yama/Sakata/Kataura toms of ischemia, the initial symptoms are related to anomalous vasculature, intracranial aneurysm or transient ischemic attacks related to atheromatous lesions [9,10]. However, the middle ear vascular anomalies related to ICA lesions are usually found by otological symptoms.…”

Section: Discussionmentioning

confidence: 99%

“…It was confirmed that the present case showed the narrowed horizontal carotid canal. The incidence of hypoplasia of the ICA must exceed the number of cases reported in the literature, as this anomaly may often occur without any clinical symptoms [7,9,10]. Though vascular anomalies of the middle ear are usually of little clinical significance when properly diagnosed, the collateral anastomoses should be determined with radiological examinations.…”

Section: Discussionmentioning

confidence: 99%

“…First, there exist saccular aneurysms of the circle of Willis and the basilar artery; second, there are dilated vascular anastomoses, and third, there are anomalies in the circle of Willis itself [7,9,10]. The present case was considered as the second type, namely dilated anastomoses.…”

Section: Discussionmentioning

confidence: 99%

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Anomalous Vessels in the Middle Ear Associated with Congenital Anomalies of the Internal Carotid Artery

Himi¹,

Akiba²,

Yama³

et al. 1999

ORL

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A case with unilateral hypoplasia of the internal carotid artery was reported. The rerouting of anomalous vessels in the middle ear, visualized by otoscopy, was demonstrated with CT and MRI. Associations with internal carotid hypoplasia, the intercarotid collaterals, both anomalous middle ear arteries and the enlarged internal maxillary artery were confirmed with MRI. MR images were helpful to diagnose not only the anomalous vessels but also the multiple anastomoses.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Anomalous Vessels in the Middle Ear Associated with Congenital Anomalies of the Internal Carotid Artery

Himi¹,

Akiba²,

Yama³

et al. 1999

ORL

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“…9,16) Carotid-cavernous fistulas (CCFs) associated with PPTA are rare, especially secondary to trauma. 7) We report a case of traumatic CCF associated with PPTA in a 30-year-old woman who was successfully treated using trans-arterial sinus coil embolization with the double catheter technique.…”

Section: Introductionmentioning

confidence: 99%

Traumatic Carotid-Cavernous Fistula Associated With Persistent Primitive Trigeminal Artery Treated by Transarterial Coil Embolization -Case Report-

Kobayashi

Miyachi

et al. 2011

Neurol. Med. Chir.(Tokyo)

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A 30-year-old woman presented with traumatic carotid-cavernous fistula associated with persistent primitive trigeminal artery (PPTA) manifesting as right conjunctival chemosis, exophthalmos, and diplopia. The lesion was treated successfully by trans-arterial coil embolization using the double catheter method with balloon assist. Injury to the PPTA is relatively rare and the PPTA should be sacrificed together with the fistula during the repair.

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“…Therefore, m easurem ent o f the carotid canal diam eter using a CT scan of the skull base may provide useful indi cations for the diagnosis of ICA agenesis or hypoplasia [9][10][11]15].…”

mentioning

confidence: 99%

CT Scan of the Skull Base in Internal Carotid Artery Hypoplasia

Kubis¹,

Zuber²,

Méder³

et al. 1995

Cerebrovasc Dis

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Internal carotid artery (ICA) hypoplasia is a rare congenital anomaly that is sometimes difficult to distinguish from acquired diseases associated with narrowing of the ICA. As the carotid canal develops in association with the ICA, a hypoplastic carotid artery should result in a hypoplastic carotid canal. We used skull base CT scans to measure the size of carotid canals in 4 patients with ICA hypoplasia (bilateral in 1) and in 30 consecutive controls. The diameter of the carotid canal was significantly smaller in the patients with carotid hypoplasia (2.4–3.0 mm, on the involved side) than in the controls (mean = 6.4 ± 0.8 mm, range = 5.2–9.8 mm) with no overlapping value (p < 0.001). The ratio of the largest to the smallest carotid diameter was greater than 2 in patients with unilateral hypoplasia, while it never exceeded 1.2 in controls. CT scan of the skull base is a simple and reliable tool for confirming the diagnosis of ICA hypoplasia.

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Internal carotid artery hypoplasia

Cited by 24 publications

References 10 publications

Anomalous Vessels in the Middle Ear Associated with Congenital Anomalies of the Internal Carotid Artery

Anomalous Vessels in the Middle Ear Associated with Congenital Anomalies of the Internal Carotid Artery

Traumatic Carotid-Cavernous Fistula Associated With Persistent Primitive Trigeminal Artery Treated by Transarterial Coil Embolization -Case Report-

CT Scan of the Skull Base in Internal Carotid Artery Hypoplasia

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