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J Med Imaging Radiat Oncol ; 60(1): 92-5, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25974748

RESUMO

Neurolymphomatosis (NL) is a rare presentation of lymphoma or leukemic infiltration of cranial or peripheral nerves. It is distinct from subarachnoid seeding of lymphoma as well as perineural tumour seen in epidural lymphoma. This rare condition has been reported mainly in oncology literature. Imaging features of solitary nerve involvement mimics, among others, peripheral nerve sheath tumours. We present the MRI and (18) fluorodeoxyglucose positron emission tomography ((18) FDG-PET) features of three cases of NL. MRI demonstrated variable appearances: infiltrative mass displacing neural fascicles, diffuse thickening and enhancement, and thickening of individual neural fascicles. (18) FDG-PET demonstrated avid uptake in all cases, two of which revealed skip lesions of the same nerve. The diagnosis of NL was confirmed by uncomplicated CT-guided biopsy of the affected sciatic nerve in one patient.


Assuntos
Fluordesoxiglucose F18 , Imageamento por Ressonância Magnética/métodos , Doença de Marek/diagnóstico por imagem , Tomografia por Emissão de Pósitrons/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Diagnóstico Diferencial , Feminino , Humanos , Imagem Multimodal , Compostos Radiofarmacêuticos
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