in the head and neck region, tracheal and larynx paragangliomas are much less common and subglottic paragangliomas have been rarely reported. less than 60 cases with larynx paraganglioma and a few cases with ‎trachea paraganglioma have been reported ‎until know in the literature. ‎this report describes a 28 year old man suffering from progressive dyspnea due to tracheal and subglottal tumor. ‎h...

BACKGROUND Commonly occurring in the head and neck, paragangliomas are typically benign, highly vascular neoplasms embryologically originating from the extra-adrenal paraganglia of the neural crest. Frequently, these tumors are associated with the vagus or tympanic plexus nerve or the carotid artery, or jugular bulb. Their clinical presentation can vary across a wide spectrum of signs and sympt...

Paragangliomas are benign tumors of neuroendocrine origin affecting the adrenal glands most frequently. Extra-adrenal paragangliomas (EAPs) are rare. Most EAPs are derived from carotid body or the jugular bulb.1 Paragangliomas affecting the spine are extremely rare.2 Spinal paragangliomas tend to affect the lumbar spine more often than other parts of the spine. Cauda equine paragangliomas (CEPs...

paragangliomas in the head and neck are found typically in the region of the carotid body, jugular body, and along the 9th and 10th cranial nerves. they can occur in multicenteric forms, but generally, laryngeal paragangliomas are not found in these patients. only two cases of laryngeal paraganglioma have been reported with a synchronous lesion elsewhere. we report an additional case of a 34-ye...

Paragangliomas, as well as pheochromocytomas, are neuroendocrine tumours, which often secrete catecholamines. This hypersecretion causes symptoms that are often difficult to control. Pheochromocytomas originate in the medulla of the adrenal glands and make up 80-85% of cases, whereas paragangliomas originate extra-adrenally and make up 15-20% of cases. Paragangliomas are rare tumours, and altho...

Paragangliomas originate from glomus bodies which are non-working temporal bone chemoreceptors, derived from neuroectodermal cells of the neural crest. Tympanic paragangliomas have pulsatile tinnitus as its most frequent symptom, followed by conductive hearing loss, otalgia and ear fullness. Some patients may present vertigo and otorhagia. Our goal is to present two cases of tympanic paragangli...

Paragangliomas (PGs) are rare neuroendocrine tumors arising from paraganglia, clusters of cells scattered throughout the body. Mediastinal paragangliomas represent less than 2% all and 0.3 % mediastinal tumors. These may secrete catecholamines, however in up to 50% cases they nonfunctional diagnosed incidentaly or with symptoms mass effcet adjacent structures. They should be considered differen...

Paragangliomas are tumors of the autonomic nervous system, arising from paraganglionic tissue. Paragangliomas of the head and neck region are very rare. In the head and neck, the most common sites of origin of this neoplasm are the carotid body, the jugular bulb and the vagal body. Paragangliomas of the nose and paranasal sinuses are very uncommon. The authors referred one case of nasal paragan...

Paragangliomas are tumors originated from non-chromaffin paranganglia cells derived from the neural crest. These highly vascular tumors are located in the region which extends from skull base to arcus aorta. Head and neck paragangliomas have rare occurence constituting 0.012% of all the body tumors and 0.6% of head and neck tumors. Head and neck paragangliomas occur in sporadic and familial for...

In this paper we construct a Rankin-Selberg integral which represents the Spin10× St L-function attached to the groupGSO10×PGL2. We use this integral representation to give some equivalent conditions for a generic cuspidal representation on GSO10 to be a functorial lift from the group G2 × PGL2.