18F-FDG and 11C-methionine PET in choroid plexus papilloma--report of three cases.
Radiat Med
; 20(2): 97-100, 2002.
Article
en En
| MEDLINE
| ID: mdl-12041706
Choroid plexus papilloma (CCP) is an uncommon benign neoplasm of the neuroectoderm. We present the 18F-fluoro-2-deoxy-D-glucose (FDG) and 11C-methyl-L-methionine (methionine) positron emission tomography of CPP in comparison with that of low-grade glioma. Patients were two women and one man (20, 23, and 72 years old). The Ki-67 labeling index ranged from 0.98 to 2.22%, and histologically the cases belonged to grade 2. On quantitative analysis, the tumor/normal ratio (T/N) was calculated using the standardized uptake value. Methionine T/N was significantly higher in CPP (3.24+/-0.69) than in low-grade glioma (1.23+/-0.81; p<0.01), although no clear difference could be determined for FDG T/N between the two (0.87+/-0.39, 0.75+/-0.53). These results may suggest that the metabolism of amino acid in CPP is quite different from that in low-grade glioma.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tomografía Computarizada de Emisión
/
Radiofármacos
/
Fluorodesoxiglucosa F18
/
Papiloma del Plexo Coroideo
/
Metionina
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Radiat Med
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
MEDICINA NUCLEAR
/
NEOPLASIAS
/
RADIOTERAPIA
Año:
2002
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Japón