Diagnostic Value of CPA Tumors on Enhanced MRI / 实用放射学杂志
Journal of Practical Radiology
;
(12)2000.
Artículo
en Chino
| WPRIM
| ID: wpr-536385
ABSTRACT
Objective To explore enhanced MRI diagnostic value of CPA(cerebellopontine angle) tumors.Methods 68 cases of CPA tumors,including acoustic neuromas(n=34),trigeninal neuromas (n=5),meningiomas(n=20)and cholesteatomas(n=9),proved surgically and pathologically were studied.All patients were performed MR scans before and after contrasted-enhancement on axial,sagittal and coronal plane.Results 23 of 34 acoustic neuromas showed nodule-ring-like,wreathlike or mutilocular enhanced masses;11 were homogeneous masses.The facial-hearing nerve bundle were markedly thickened and enhanced in 34 cases and in which 15 presented "water-chestnut"sign;suggesting it was a typical appearance of acoustic neuromas.5 trigeminal neuromas manifested nodule-ring-like or multilocular enhanced masses(n=3),and dumbbell-like masses(n=2).20 meningiomas exhibited homogeneous massive enhancement,"dural tail"sign(n-11),the facial-hearing-nerve bundle on the affected side were enhanced but not thickened(n-5);which represented reactive changes to the tumors.9 cholesteatomas displayed long T 2 long T 1,no enhancement;spreaded along subarachnoid space and basilar artery encapsuled(n-5).Conclusion Enhanced MRI can reveal the characteristics of CPA tumors,it is of especial value for diagnosis of the tumors.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Estudio diagnóstico
Idioma:
Chino
Revista:
Journal of Practical Radiology
Año:
2000
Tipo del documento:
Artículo
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