MRI Findings of Vermian Medulloblastoma
Journal of the Korean Radiological Society
;
: 15-20, 1996.
Artículo
en Coreano
| WPRIM
| ID: wpr-121184
ABSTRACT
PURPOSE:
To find characteristic MRI features of vermian medulloblastoma. MATERIALS ANDMETHODS:
MRI studiesand medical records were retrospectively reviewed for 12 patients with surgically proven midline medulloblastoma. The assessment concerned appearance of the mass in relation to surrounding structures ; MR signal intensity ; the enhancement pattern ; the mass's location and size ; presence of a cystic/necrotic area, calcification, or vascular void ; extension through the foramen Luschka ; degree of hydrocephalus ; and presence of tonsillarherniation.RESULTS:
The midline medulloblastoma commonly showed roundish moon-surface appearance, especially onthe axial T2-weighted images. All tumors showed heterogeneous signal intensities mainly due to intratumoralcystic/necrotic or hemorrhagic changes. The tumors were commonly located at mid- and/or inferior vermis. Occasionally the tumors extended through the foramen Luschka, and caused obstructive hydrocephalus of moderate tosevere degree. Post-con-trast study showed heterogeneous, dense contrast enhancement in the majority of patients.CONCLUSION:
The MR finding of the moon-surface appearance formed by both the mass and the intratumoralcystic/necrotic change as seen on axial T2-weighted images could be helpful in the diagnosis of vermianmedulloblastoma.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Imagen por Resonancia Magnética
/
Registros Médicos
/
Estudios Retrospectivos
/
Diagnóstico
/
Hidrocefalia
/
Meduloblastoma
Tipo de estudio:
Estudio diagnóstico
/
Estudio observacional
Límite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Año:
1996
Tipo del documento:
Artículo
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