What does high riding jugular bulb mean?
High riding jugular bulb is defined as an extension of the most cephalad portion of the Jugular bulb superior to the floor of the internal auditory canal or it can projects above the basal turn of the cochlea [2]. It could also be a diverticulum arising from the Jugular bulb.
Are glomus jugulare tumors cancerous?
Glomus jugulare tumors are rarely cancerous and do not tend to spread to other parts of the body. However, treatment may be needed to relieve symptoms. The main treatment is surgery. Surgery is complex and is most often done by a neurosurgeon, head and neck surgeon, and ear surgeon (neurotologist).
How common are glomus jugulare tumors?
Glomus jugulare tumors are rare, occurring in one in every 1.3 million people each year. These tumors are much more common in women than men and tend to arise between the ages of 40 and 70.
What would be a potential symptom of a patient developed a tumor at the jugular foramen?
The jugular foramen is on the temporal bone. The temporal bones are on the sides of your skull, or your temples. These tumors are nearly always benign, or noncancerous, but their presence can cause hearing loss, problems with swallowing, and facial paralysis.
How common is a high-riding jugular bulb?
An abberent jugular bulb can cause a venous tinnitus. A high-riding jugular bulb is a common vascular anomaly, found in 2.4-7% of temporal bones.
What does the jugular bulb do?
The jugular bulb (JB) is the confluence of the lateral venous sinuses situated in the jugular fossa. It drains extracranially to the internal jugular vein as it passes through the jugular foramen of the posterior cranial fossa. The precise location of this structure within the temporal bone is variable.
Should glomus tumor be removed?
Complete surgical excision provides definitive treatment. For multiple glomus tumors, excision may be difficult because the tumors may be poorly circumscribed. Excision should be limited to symptomatic lesions.
How is glomus jugulare treated?
Surgery is the treatment of choice for glomus jugulare tumors. However, radiation therapy, particularly stereotactic radiosurgery (eg, Gamma Knife surgery), has been shown to provide good tumor growth control with a low risk of treatment-related cranial nerve injury.
Are glomus tumors hereditary?
Most glomus jugulare tumors develop by chance in individuals who have no family history of this condition.
What is the jugular bulb?
What is a glomus?
What is a Glomus Tumor? Glomus tumors — also known as paragangliomas — of the head and neck are benign (noncancerous) but locally invasive tumors that arise from glomus cells. In the head and neck, glomus tumor tissue is found in the jugular bulb, middle ear, and carotid artery.
What is a mega jugular bulb?
1. If the jugular bulb is large in cross-diameter, it is called mega jugular bulb, regardless of its position. In two-thirds of the population, the jugular bulb and the jugular vein on the right side are significantly larger than the ones on the left side.