Quiz Case of the Month

Verbist, Berit M.; Hermans, Robert; Devlies, F.; Foer, Bert De; Baert, Albert

doi:10.1007/bf00240713

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…These vessels are the inferior tympanic artery, an embryonic branch of the ECA, and the caroticotympanic artery, a branch of the horizontal petrous part of the ICA. The enlarged inferior tympanic artery enters the tympanic cavity through the inferior tympanic canaliculus, passes lateral to the cochlear promontory bulging into the middle ear cavity, eventually anastomosing with the caroticotympanic artery to reach the horizontal petrous ICA segment ( 2 , 3 ). The intratympanic course of the aberrant ICA may suggest a vascular mass on otoscopic examination.…”

Section: Discussionmentioning

confidence: 99%

“…Though in most cases asymptomatic, symptoms such as pulsatile tinnitus or conductive hearing loss may sometimes be seen in aberrant ICA but these are very non-specific. Aberrant ICA can therefore not reliably be discerned from vascular tumors or other vascular malformations like an aneurysm or a hemangioma ( 5 ), based on clinical findings alone ( 3 ). A biopsy or surgical exploration of a presumed hypervascular mass can be complicated by life-threatening hemorrhage or neurological deficit.…”

Section: Discussionmentioning

confidence: 99%

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Aberrant internal carotid artery presenting as a retrotympanic vascular mass

Nicolay

Foer

Bernaerts

et al. 2014

Acta Radiologica Short Reports

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We report a case of a young woman with an aberrant right internal carotid artery (ICA) presenting as a retrotympanic reddish mass. This variant of the ICA represents the collateral pathway that is formed as a result of an embryological agenesis of the cervical segment of the ICA. The embryonic inferior tympanic artery is recruited to bypass the absent carotid segment. This hypertrophied vessel may be seen otoscopically and wrongfully considered to be a vascular middle ear tumor. Informing the otorhinolaryngologist of this important vascular variant not only obviates biopsy but also helps in careful preoperative planning of eventual middle ear procedures.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Aberrant internal carotid artery presenting as a retrotympanic vascular mass

Nicolay

Foer

Bernaerts

et al. 2014

Acta Radiologica Short Reports

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Skull base: pseudolesion or true lesion?

Schmalfuss

Camp

2008

Eur Radiol

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The skull base is a complex anatomical structure. Therefore, radiologists often use "side-to-side" comparison for detection of abnormalities. This approach is compromised by the high frequency of anatomical variations involving the skull base and the common presence of flow-related artifacts within vessels at the skull base that might mimic true lesions. The spectrum of "pseudolesions" ranging from different anatomical variations, such as unusual arachnoid granulations, asymmetric pneumatization and/or appearance of neurovascular foramina, to flow-related artifacts will be discussed in this review article, and tips for their distinction from a true lesion in a similar location will be given.

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