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A paraganglioma is a rare neuroendocrine neoplasm that may develop at various body sites (including the head, neck, thorax and abdomen). When the same type of tumor is found in the adrenal gland, they are referred to as a pheochromocytoma. They are rare tumors, with an overall estimated incidence of 1 in 300,000. [1]
Meningioma, a tumor of the meninges or membranes that surround the nerves passing through the CPA; Cerebellar astrocytoma, a malignant tumor of star-shaped glial cells called astrocytes in the cerebellum; Intracranial epidermoid cyst; Lipoma; Glomus jugulare associated with the glossopharyngeal nerve; Idiopathic hypertrophic pachymeningitis [3]
A glomus tumor (also known as a "solitary glomus tumor" [1]) is a rare neoplasm arising from the glomus body and mainly found under the nail, on the fingertip or in the foot. [2]: 670 They account for less than 2% of all soft tissue tumors. [3] The majority of glomus tumors are benign, but they can also show malignant features. [4]
Benign tumors involving the hypoglossal nerve and canal include large glomus jugulare neoplasms. Malignant tumors revolving around the hypoglossal canal can include metastases , myeloma , neural tumors such as neuroma and schwannoma ; meningioma can also occur occasionally.
Glomus jugulare tumor: A glomus jugulare tumor is a tumor of the part of the temporal bone in the skull that involves the middle and inner ear structures. This tumor can affect the ear, upper neck, base of the skull, and the surrounding blood vessels and nerves. A glomus jugulare tumor grows in the temporal bone of the skull, in an area called ...
Diffusion imaging is an MRI method that produces in vivo magnetic resonance images of biological tissues sensitized with the local characteristics of molecular diffusion, generally water (but other moieties can also be investigated using MR spectroscopic approaches). [15] MRI can be made sensitive to the motion of molecules.
M8690/1 Glomus jugulare tumor, NOS (C75.5) Jugular/jugulotympanic paranglioma; M8691/1 Aortic body tumor (C75.5) Aortic/aorticopulmonary paraganglioma; M8692/1 Carotid body tumor/paraganglioma (C75.4) M8693/1 Extra-adrenal paraganglioma, NOS Nonchromaffin paraganglioma, NOS; Chemodectoma; M8693/3 Extra-adrenal paraganglioma, malignant
In neuroscience, tractography is a 3D modeling technique used to visually represent nerve tracts using data collected by diffusion MRI. [1] It uses special techniques of magnetic resonance imaging (MRI) and computer-based diffusion MRI. The results are presented in two- and three-dimensional images called tractograms. [2]