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Discovering Middle Ear Anatomy by Transcanal Endoscopic Ear Surgery: A Dissection Manual
Published on: January 11, 2018
A potentially catastrophic anatomical variation: aberrant internal carotid artery in the middle ear cavity
Togay Muderris1, Sami Bercin, Ergun Sevil
1Department of Otorhinolaryngology-Head and Neck Surgery, Ataturk Training and Research Hospital, Bilkent, 06800 Ankara, Turkey.
Insights
Aberrant internal carotid artery (ICA) is a rare vascular anomaly. Early diagnosis of this temporal bone condition is crucial for otologic surgeons to prevent severe complications during procedures.
Area of Science:
- Vascular Surgery
- Otolaryngology
- Radiology
Background:
- Aberrant internal carotid artery (ICA) is a rare vascular anomaly.
- Misdiagnosis can lead to severe complications during otologic procedures.
Purpose of the Study:
- To present a case of aberrant ICA.
- To highlight the importance of recognizing this anomaly in otologic surgery.
Main Methods:
- Case presentation of a patient with hearing loss.
- Otoscopic examination revealing a tympanic membrane perforation and a retrotympanic mass.
- Multidetector computed tomography (MDCT) for diagnosis.
Main Results:
- The aberrant ICA presented as a nonpulsatile middle ear mass.
- MDCT provided excellent visualization of the temporal bone and aberrant ICA.
- Diagnosis was confirmed in the presented case.
Conclusions:
- Otolaryngologists must consider vascular anomalies like aberrant ICA.
- Awareness of aberrant ICA is essential for preventing surgical complications.
- MDCT is a valuable tool for diagnosing aberrant ICA.
Abstract:
Aberrant internal carotid artery (ICA) is a rare but a very important vascular anomaly of temporal bone. Misdiagnosis of the anomaly may lead to massive hemorrhage and severe complications during otologic procedures. It is essential to keep this anomaly in mind for any otologic surgeon to prevent catastrophic complications. We present a case of aberrant ICA appeared as a nonpulsatile middle ear mass. The patient had a complaint of hearing loss, and the otoscopic examination of the patient revealed a tympanic membrane perforation and a blue-reddish retrotympanic mass. Multidetector computed tomography (MDCT) is a useful tool that may provide excellent visualization of temporal bone for the diagnosis of aberrant ICA. Otolaryngologists should be aware of the possibility of a vascular anomaly of temporal bone when a patient presents with a blue-reddish mass in the middle ear.
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