High Riding Jugular Bulb Protruding Into Tympanic Cavity: Longitudinal Radiologic Study in a Deaf Child.

This is the first pediatric case in which a longitudinal CT scan proves that HRJB develops and protrudes over time. These findings suggest that the earlier the HRJB forms, the larger it may grow. We must keep in mind the possibility of the enlargement and protrusion of HRJB.