Major congenital anomalies of the internal carotid artery: agenesis, aplasia and hypoplasia

Clarós, Pedro; Bandos, Rogério Dutra; Gilea, I.; Capdevila, A.; Rodríguez, Jorge García; Clarós, Andrés

doi:10.1016/s0165-5876(99)00012-9

Cited by 65 publications

(59 citation statements)

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“…Underdevelopment or absence of the internal carotid artery is an uncommon disease [1]. About 100 cases of absence or underdevelopment of the internal carotid are reported in the literature [2], but the real incidence may be higher because many patients with absence or hypoplasia of the internal carotid probably never come to medical attention.…”

Section: Discussionmentioning

confidence: 99%

“…Hypoplasia of the internal carotid artery (HICA) is a rare congenital anomaly caused by an incomplete development of the organ, and only a few cases are reported in the literature [1]. The prevalence of HICA (including agenesia and aplasia) is estimated to about 0.01% [1,2], and recognition of this disease has important clinical implications.…”

Section: Introductionmentioning

confidence: 99%

“…The prevalence of HICA (including agenesia and aplasia) is estimated to about 0.01% [1,2], and recognition of this disease has important clinical implications. Ultrasonography (US) is usually the first examination performed to detect suspected HICA.…”

Section: Introductionmentioning

confidence: 99%

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Hypoplasia of the internal carotid artery: collateral circulation and ultrasonographic findings. A case report

Nicoletti

Sanguigni²,

Bruno

et al. 2009

Journal of Ultrasound

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KEYWORDSArteries, abnormalities; Hypoplasia internal carotid artery; Extracranial duplex sonography; Transcranial duplex sonography.Abstract Introduction: Hypoplasia of the internal carotid artery (HICA) is a rare congenital anomaly caused by an incomplete development of the organ, and only a few cases are reported in the literature. The prevalence of HICA (including agenesia and aplasia) is estimated to about 0.01%. Case report: We describe a case of a 66-year-old man with hearing loss on the left side and no other symptoms or signs related to vascular impairment. HICA was discovered incidentally by color duplex sonography of the extracranial cerebral vessel and confirmed by magnetic resonance imaging angiography (angio MRI) and computed tomography (CT) of the head. Discussion: Compensatory flow allows HICA patients to remain asymptomatic, but complications may occur. The pathways of the collateral circulation in association with aplasia or HICA are described. A differential diagnosis was made on the basis of ultrasonographic (US) detection of diffuse luminal narrowing of the internal carotid artery (ICA). Recognition of this disease has important clinical implications.Sommario Introduzione: L'ipoplasia della carotide interna è una rara anomalia congenita che si verifica per un incompleto sviluppo dell'organo. Soltanto pochi casi sono stati riportati in letteratura. La prevalenza dell'ipoplasia se calcolata insieme alla agenesia e alla aplasia è stimata essere dello 0.01%. Caso clinico: Descriviamo il caso di un uomo di 66 anni affetto da ipoacusia all'orecchio sinistro e nessun segno di problemi vascolari. L'ipoplasia della carotide interna fu scoperta accidentalmente durante un ecocolordoppler dei tronchi sovraortici e venne confermata da angio risonanza magnetica e tomografia assiale computerizzata del cranio. Discussione: I flussi di compenso permettono a questi pazienti di rimanere asintomatici per molti anni ma possono essere causa nel tempo di complicazioni. Vengono descritti i pattern di circolazione collaterale associati alla ipoplasia della carotide interna. Vengono messi in evidenza i segni ultrasonografici che permettono la diagnosi differenziale in caso di diffuso * Corresponding author. Geriatric Department, Ospedale Madonna delle Grazie, 75100 Matera, Italy.E-mail addresses: nicolettix@libero.it, giusnicoletti@gmail.com (G. Nicoletti). restringimento del lume vascolare della arteria carotide interna. Inoltre, sottolineiamo che il riconoscimento di tale condizione ha importanti implicazioni nella pratica clinica. ª

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hypoplasia of the internal carotid artery: collateral circulation and ultrasonographic findings. A case report

Nicoletti

Sanguigni²,

Bruno

et al. 2009

Journal of Ultrasound

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“…Slightly more than 100 cases of congenital absence of the ICA have been reported in literature. 3 Only few symptomatic cases of ICA agenesis have been reported in children, because of the collateral pathways which maintain the cerebral perfusion. 4 Collateral supply is more commonly supplied by circle of Willis, but may also be provided by embryonic vessels or the external carotid artery.…”

Section: Introductionmentioning

confidence: 99%

Left Internal Carotid Artery Agenesis in a Child

Mohiuddin¹,

Seetharamarao²,

Kariyappa³

2015

jemds

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“…to the development such as aplasia or hypoplasia and also to their inappropriate course (tortuosity, kinking, coiling) [4,5]. There is certain evidence for the higher incidence in females and in elderly [2,3].…”

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confidence: 99%

BILATERAL TORTUOUS INTERNAL CAROTID ARTERIES – a case report, otorhinolaryngologic and general clinical implications

Ziółkowska¹,

Bachvarov²,

Sapundzhiev³

et al. 2017

JofIMAB

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Variations in the anatomical course of the cervical portion of the internal carotid arteries appear to be more common than expected and recognised, reaching a prevalence of 10-43%. A case of atypical course of both internal carotid arteries with medial transposition is described. The general clinical implications are presented in the base of review the literature.In an otherwise healthy adult female pulsating masses on the posterior oropharyngeal wall were observed on transnasal endoscopy for other indications. Contrast enhanced computer tomography revealed bilateral symmetrical tortuous internal carotids, angulated medially at the level of C2 and almost contacting in the midline. However, no significant stenosis was ascertained within any of the evaluated arteries. The patient was informed about potential risk during the prospective surgical procedures around the pharyngeal area. Carotid tortuosity may present a potential threat in otolaryngological surgery. Whereas no symptoms occur in the most of the patients and the condition can be an accidental finding during physical examination as well as endoscopic or radiological evaluation, the frequency in the general population is higher than assumed. The treatment is not indispensable, however, setting down in the patient's medical history is important. Medical specialists should keep in mind that aberrant internal carotid arteries pose a risk of severe haemorrhage when even routine surgical or diagnostic procedures within the head and neck region are performed.

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Major congenital anomalies of the internal carotid artery: agenesis, aplasia and hypoplasia

Cited by 65 publications

References 4 publications

Hypoplasia of the internal carotid artery: collateral circulation and ultrasonographic findings. A case report

Hypoplasia of the internal carotid artery: collateral circulation and ultrasonographic findings. A case report

Left Internal Carotid Artery Agenesis in a Child

BILATERAL TORTUOUS INTERNAL CAROTID ARTERIES – a case report, otorhinolaryngologic and general clinical implications

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