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9 wrz 2024 · A high riding jugular bulb indicates the dome (roof) of the jugular bulb extends more superiorly in the petrous temporal bone than is conventional. The transverse level above which a jugular bulb is considered high riding has been variably defined as the following 1,6,8: floor of the internal acoustic meatus (internal auditory canal) 2,4.
18 sie 2024 · A high-riding jugular bulb is a common vascular anomaly, found in 2.4-7% of temporal bones. About 5 fold higher prevalence of high-jugular bulb is reported in patients with ear related symptoms -- Sayit et al reported 22% in 730 patients presenting to otolaryngology (2016).
High Riding Jugular Bulb: High riding jugular bulb refers to a vein that is abnormally close to the hearing organ. Sometimes this can cause pulsatile tinnitus.
Venous PT is described as a lower pitched ‘whooshing’ sound that can be alleviated by neck maneuvers. In particular, compression of the ipsilateral internal jugular vein (IJV) or suboccipital venous plexus can alleviate symptoms, while compression of the contralateral IJV can exacerbate symptoms.
In some individuals the jugular bulb can become pathologic when it is enlarged and causes local audiological or vestibular symptoms. This can occur with a high-riding jugular bulb (HRJB) that has been variably defined as a jugular bulb that rises to the level of the basal turn of the cochlea, 3 within 2 mm of the internal auditory canal (IAC ...
25 maj 2021 · Jugular bulb diverticulum is a round or oval-shaped outpouching arising from the jugular bulb and commonly projecting superomedially into the petrous bone. Jugular bulb diverticulum has been associated with PT and other symptoms such as vertigo and hearing loss ( 19 , 95 , 99 ).
A high riding jugular bulb is a normal variant and a recognised cause of PT, more commonly noted on the right side of the neck [11,16–18]. Anatomically, this is defined by the position of the superior aspect of the jugular bulb being posterosuperior to the floor of the internal auditory canal (IAC).
