FIG 4 - uploaded by Eugen Ionescu
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Carotid canals and inferior tympanic canals. A, Case 1. CT scan=bilateral hypoplastic carotid canals (horizontal arrows) and enlarged bilateral inferior tympanic canals (vertical arrows) through which the aberrant ICA (inferior tympanic artery portion) passes. B, Case 2. CT scan = a normal right carotid canal (horizontal arrow on the patient's right), a hypoplastic carotid canal (horizontal arrow on the patient's left), and the inferior tympanic canal (vertical arrow) with the aberrant ICA.
Source publication
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