Angiography of chemodectomas of the neck

FDG PET imaging of paragangliomas of the neck: comparison with MIBG SPET

Two patients with cervical paragangliomas underwent positron emission tomography (PET) with 2-[18F]-fluoro-2-deoxy-D-glucose (FDG). There was marked tumor uptake and retention of FDG. Adjacent salivary gland accumulation of FDG was minimal, though quite prominent with meta-iodobenzylguanidine. FDG PET offers another potentially useful approach to functional imaging of these uncommon tumors, independent of the presence of specific amine uptake mechanisms or cell surface receptors required by other scintigraphic techniques.

Neurogenic neoplasms in the head and neck region

Thirteen cases of neurogenic tumor in the head and neck region experienced during the past fifteen years were reported. Six of them were neurilemmomas, three neurofibromas associated with von Recklinghausen's disease, two ganglioneuromas and two paragangliomas (chemodectomas). Representative cases were reported in detail in conjunction with considerations regarding diagnosis, treatment, and histopathologic findings by reviewing pertinent papers.