Head and Neck ImagingJugular bulb, high
jugular bulb reaching above the level of the inferior tympanic rim (
Fig.1): a normal variant not to be confused with a mass
lesion. The key is the smooth and intact margins of the
jugular foramen.
RH
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Axial (a) and coronal (b) CT-images show on the right a high-reaching, smoothly marginated bone defect (arrow) behind the internal auditory canal.
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Jugular bulb, high, Fig.1 (a) | | Jugular bulb, high, Fig.1 (b) | |