Multiple paragangliomas of the head and neck.

Multiple paragangliomas of the head and neck are rare conditions. The incidence of multiple paragangliomas is reported to the approximately 10% of the total patients, but in familial cases it increases up to 35-50%. In the head and neck region, the most common association is represented by bilateral carotid body tumors or by carotid body tumor associated with tympanic-jugular glomus. The presence of three synchronous glomus tumors is really rare, as well as association with vagal glomus and carotid body. In this paper the authors present a patient affected ipsilaterally by a carotid body tumor and vagal paraganglioma, focusing on the diagnostic options offered by imaging techniques (CT and MRI)