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  • Title: Temporal bone venous anomaly of surgical significance.
    Author: Shotton JC, Ludman H, Cox TC.
    Journal: J Laryngol Otol; 1989 Jan; 103(1):101-6. PubMed ID: 2921539.
    Abstract:
    Variability in the size of the dural sinuses and jugular bulb is not uncommon and usually manifests as a high jugular bulb encroaching upon the floor of the middle ear. A rarer entity is the superior and medial extension of the jugular bulb into the bone of the posterior wall of the internal auditory meatus. We report a case where this anomaly was encountered during acoustic neuroma surgery making exposure of the fundus of the internal auditory meatus technically impossible. The possibility of a communication with the superior petrosal sinus is discussed.
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