MR Imaging Findings of Chondroblastic Osteosarcoma
Journal of the Korean Radiological Society
; : 341-345, 1999.
Artículo
en Coreano
| WPRIM (Pacífico Occidental)
| ID: wpr-42069
Biblioteca responsable:
WPRO
ABSTRACT
PURPOSE:
To evaluate the MR imaging findings of chondroblastic osteosarcoma. MATERIALS ANDMETHODS:
Weincluded 11patients (8 men, 3 women, mean age of 19 years) with pathologically proven chondroblastic osteosarcomaand, as a control group, 20 patients with conventional osteosarcoma. We obtained pre- and post-enhanced MR imagesof all patients and retrospectively reviewed the signal intensity and enhancement pattern of tumors. MR imageswere correlated with histopathology.RESULT:
In chondroblastic osteosarcomas, the major portion (< 75%) of thetumor showed low signal intensity on T1-weighted images and homogeneous high signal intensity on T2-weightedimages, but did not show enhancement. The margin of the area showed a lobular pattern. Enhanced nodules (n=11) andstrands (n=8) were seen in the nonenhanced portion. Histopathologically, the nonenhanced portion, nodules, andstrands revealed a chondroid matrix, hypercellular area, and fibrovascular septa, respectively. Conventionalosteosarcomas showed heterogeneous enhancement ; six showed a focal (<25%) nonenhanced area representing necrosis.CONCLUSION:
Chondroblastic osteosarcoma showed characteristic MR imaging findings.
Texto completo:
Disponible
Base de datos:
WPRIM (Pacífico Occidental)
Asunto principal:
Imagen por Resonancia Magnética
/
Osteosarcoma
/
Estudios Retrospectivos
/
Condrocitos
/
Necrosis
Tipo de estudio:
Estudio diagnóstico
/
Estudio observacional
Límite:
Femenino
/
Humanos
/
Masculino
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Año:
1999
Tipo del documento:
Artículo