Hypoplasia of the internal carotid artery with intercavernous anastomosis

Chen, C. J.; Chen, S. T.; Hsieh, F. Y.; Wang, L. J.; Wong, Yiu Chung

doi:10.1007/s002340050578

Cited by 70 publications

(34 citation statements)

References 9 publications

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“…Recent developments in technology allow us to diagnose most of them by CT angiography or MR angiography, or even by conventional CT and MR images. Some variants, such as aberrant internal carotid artery or persistent stapedial artery, may be recognized on high-resolution CT [2,3,4,7,8,9]. On the contrary, small fenestrations are not detectable by even conventional digital subtraction angiography (DSA), and are detectable by only 3D reconstruction images from rotational DSA (3D DSA).…”

Section: Introductionmentioning

confidence: 97%

Anatomic variations of the cerebral arteries and their embryology: a pictorial review

et al. 2002

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In the embryonic period, several developmental anomalies of the cerebral arteries occur. The knowledge of these anatomic variations of the cerebral artery is important to avoid the unnecessary surgery and to undergo surgery or interventional radiology with safety. We reviewed 3000 MR angiographies and 700 cerebral angiographies of the previous 5 years to assess cerebral arterial system, and to illustrate the embryological development, imaging findings, occurrence, and clinical significance of the anatomic variation of the cerebral arteries. The normal development and variations of the cerebral arteries are depicted. Knowledge of the anatomic variations is important since it can influence surgical and interventional procedure.

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Section: Introductionmentioning

confidence: 97%

Anatomic variations of the cerebral arteries and their embryology: a pictorial review

et al. 2002

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“…In case 2 intracerebral circulation was not studied in detail, but global injection of the supraaortic arteries showed no reduction of flow in the left MCA after compression of the left hypoplastic carotid system. Other possible collateral pathways reported in the literature include persistent hypoglossal artery [13], intercarotid anastomosis [3,14,15], and rete carotidis mirabile [15].…”

Section: Discussionmentioning

confidence: 99%

Hypoplasia of the internal carotid artery: a noninvasive diagnosis

et al. 2000

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We present the characteristic imaging findings of hypoplasia of the internal carotid artery (ICA) in two cases, one accompanied by an intracranial aneurysm. Finding of a diffuse luminal narrowing of the ICA on MR angiography or digital subtraction angiography (DSA) could wrongly evoke severe acquired diseases such as dissection or atherosclerosis. Absence of associated wall thickening and flow disturbances on color Doppler sonography (CDS) should suggest carotid hypoplasia. Confirmation of the diagnosis is obtained by CT of the skull showing a small carotid canal. Non-invasive procedures are sufficient to differentiate this rare congenital anomaly from acquired string signs.

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“…Unilateral hypoplasia and total agenesis of the ICA are comparatively common ICA anomalies, 4,5,9,11,15) which clearly induce hemodynamic stress in the ICA on the normal side, and may also be important in the pathogenesis of cerebral aneurysm. 5) Aberrant course of the ICA in the temporal bone is a rare vascular anomaly, [1][2][3]6,15) which otoscopy sometimes identifies as a retrotympanic mass.…”

Section: Discussionmentioning

confidence: 99%