(18F)-FDG Positron Emission Tomography and Magnetic Resonance Imaging Findings in Differential Diagnosis of Multiple Primary Central Nervous System Lymphomas: A Case Report

2015 ◽  
Vol 7 (1) ◽  
pp. 83-86
Author(s):  
Ara Kaprelyan ◽  
Pavel Bochev ◽  
Alexandra Tzoukeva ◽  
Margarita Grudkova ◽  
Radoslav Georgiev ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Positron Emission Tomography ◽  
Central Nervous System ◽  
Nervous System ◽  
Emission Tomography ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Positron Emission ◽  
Multiple Primary ◽  
18F Fdg

Utilidad de la tomografía por emisión de positrones/tomografía computada (PET/CT) en pacientes con diagnóstico de meduloblastoma

2020 ◽  
Vol 63 (1) ◽  
pp. 34-41
Author(s):  
Rocío Elizabeth García Dávila ◽  
Sergio Díaz Bello ◽  
Raúl Villanueva Rodríguez ◽  
René López León ◽  
Luis Valencia Vázquez
Keyword(s):  
Positron Emission Tomography ◽  
Central Nervous System ◽  
Nervous System ◽  
Somatostatin Receptors ◽  
Emission Tomography ◽  
Imaging Method ◽  
Positron Emission ◽  
Pet Ct ◽  
18F Fdg

"PET/CT (positron emission tomography/computed tomography, for its acronym in English) is a unique imaging method that provides in vivo evidence of both biochemical and physiological activities of the brain, spinal cord and tumors that involve these structures. Medulloblastoma is the most common malignant tumor of the central nervous system (CNS) in pediatric patients, so PET/CT plays an important role as it provides information on the grade and extent of the tumor as well as to determine the appropriate site for the biopsy, assessing the response to the treatment and the patient’s prognosis. There are different radiopharmaceuticals for the evaluation of central nervous system tumors, but 18F FDG (Fluor-2-fluoro-2-desoxy-D-glucose) and 68Ga-DOTA-NOC (68Ga-DOTA0-1NaI3-octreotide) have been studied to help us evaluate and follow up patients diagnosed with medulloblastoma. Medulloblastoma has an overexpression of glucose transporters, mainly type 1, and an overexpression of predominantly type 2 somatostatin receptors, which allows a high affinity for these radiopharmaceuticals. Key words: Medulloblastoma; positron emission tomography; PET/C; 18F-FDG; 68Ga-DOTA-NOC; brain tumor.

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