Aberrant Carotid Artery in the Middle Ear

Abstract

Background: Carotid artery abnormality in the middle ear is a rare clinical condition. Recognition of the problems related with this abnormality is important since it may mimic vascular tumors. Any intervention with incomplete evaluation can be fatal. Case Report: A 23-year-old girl with carotid abnormality and sensorineural hearing loss, unsteadiness and tinnitus is presented. She was followed for 2 months elsewhere assuming that she had Meniere’s disease and had previously received some medication for otitis media with effusion. Conclusion: Tomography and magnetic resonance imaging of the temporal bone are very helpful for visualization of an aberrant carotid in the middle ear. Radiological presentations are the reduced caliber of the aberrant carotid, an absence of cranial opening of carotid canal, tubular coursing along the medial wall of the middle ear in continuity with the horizontal carotid canal, dehiscence of the lateral carotid plate and enlargement of the tympanic canalicus.

Keywords

• Aberrant carotid artery, hearing loss, tinnitus

Kaynakça

1. 1. Hasebe S, Sando I, Orita Y. Proximity of carotid canal wall to tympanic membrane: a human temporal bone study. Laryngoscope 2003;113:802-7. [CrossRef]
2. 2. Jacobsson M, Davidsson A, Hugosson S, Tjellstrom A, Svendsen P. Aberrant intratympanic internal carotid artery: a potentially hazardous anomaly. J Laryngol Otol 1989;103:1202-5. [CrossRef]
3. 3. Soderman M, Moersdorf M, Lysdahl M, Mendel L. Otorrhagia from the aberrant internal carotid artery in the middle ear. Surgical and endovascular aspects. Interv Neuroradiol 1997;30:231-8.
4. 4. Lasjaunias P, Santayo-Vasquez A. Segmental agenesis of the internal carotid artery: angiographic aspects with embryological discussion. Anat Clin 1984;6:133-41. [CrossRef]
5. 5. Roll JD, Urban MA, Larson TC, Gailloud P, Jacob P, Harnsberger HR. Bilateral aberrant internal carotid arteries with bilateral persistent stapedial arteries and bilateral duplicated internal carotid arteries. AJNR Am J Neuroradiol 2003;24:762-5.
6. 6. Moreano EH, Paparella MM, Zelterman D, Goycoolea MV. Prevalence of carotid canal dehiscence in the human middle ear: a report of 1000 temporal bones. Laryngoscope 1994;104:612-8. [CrossRef]
7. 7. Atilla S, Akpek S, Uslu S, Ilgıt ET, Isık S. Computed tomographic evaluation of surgically vascular variations related with the temporal bone. Eur J Radiol 1995;20:52-6. [CrossRef]
8. 8. Song YS, Yuan YY, Wang GJ, Dai P, Han DY. Aberrant internal carotid artery causing objective pulsatile tinnitus and conductive hearing loss. Acta Otolaryngol 2012;132:1126-30. [CrossRef]

9. 9. Neyt P, Govaere F, Forton GE. Simultaneous true stapes fixation and bilateral bony dehiscence between the internal carotid artery and the apex of the cochlea: the ultimate pitfall. Otol Neurotol 2011;32:909-13. [CrossRef]
10. 10. Saini J, Kesavadas C, Thomas B, Arvinda HR. Aberrant petrous internal carotid artery with cochlear anomaly. An unusual association. Surg Radiol Anat 2008;230:453-7. [CrossRef]