MR Imaging of the Pigmented Villonodular Synovitis of the Knee
Journal of the Korean Radiological Society
;
: 165-170, 1994.
Article
Dans Coréen
| WPRIM
| ID: wpr-42849
ABSTRACT
PURPOSE:
To describe the magnetic resonance (MR) findings of pigmented villonodular synovitis(PVNS) of the knee, and to evaluate the clinical value of MR in the diagnosis of PVNS. MATERIALS ANDMETHODS:
MR imagings of seven patients with PVNS were studied. The type of lesion, presence of bony erosion, the signal intensity, and the relationship between contrast enhancement and signal intensity on T2-weighted images were analyzed, retrospectively.RESULTS:
The lesion was mainly villous in three patients and nodular in four, and bony erosion was seen in one patient. On T2-weighted image, the signal intensity of the villous form was mixed iso- and hypointense in two, hypointense in one, and that of the nodular form was heterogeneous with hypo-, iso-, and hyperintensities. The hypointense portion on T2-weighted image showed poor contrast enhancement, which may suggest hemosiderin deposition or advanced fibrosis. The iso- or hyperintense portion on T2-weighted image showed strong enhancement, which suggest active cellular proliferation.CONCLUSION:
MR imaging could be a very useful modality in the diagnosis as well as prediction of histological findings of the PVNS.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Synovite villonodulaire pigmentaire
/
Fibrose
/
Imagerie par résonance magnétique
/
Études rétrospectives
/
Prolifération cellulaire
/
Diagnostic
/
Hémosidérine
/
Genou
Type d'étude:
Etude diagnostique
/
Étude observationnelle
Limites du sujet:
Humains
langue:
Coréen
Texte intégral:
Journal of the Korean Radiological Society
Année:
1994
Type:
Article
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