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Imaging features of malignant external otitis / 实用放射学杂志
Journal of Practical Radiology ; (12): 1634-1637, 2014.
Artigo em Chinês | WPRIM | ID: wpr-459543
ABSTRACT
Objective To explore the value of computed tomography (CT)and magnetic resonance imaging (MRI)in the diagno-sis and delineation of the extent of malignant external otitis (MEO).Methods Clinical manifestations and imaging features of 10 pa-tients with definite diagnosis of MEO were collected and analyzed.Plain and contrast-enhanced CT of the ear were performed on all 10 patients,of which 6 patients also received MRI scans.Results Abnormal soft tissue opacity within the external auditory canal and involvement of surrounding structures were found in all 10 patients.Bone erosion of the external auditory canal was showed in 7 pa-tients.Other CT findings included bone erosion of skull base and intracranial involvement.Abnormal soft tissue of the external audi-tory canal,effusion in the mastoid cavity and medullary abnormalities were showed very well on MR images in 6 patients while the cortical bone erosion was not well showed.Conclusion Imaging features of the lesions in the external auditory canal,bone erosion of skull base and intracranial involvement play crucial roles in the diagnosis and delineation of the extent of the lesion in patients with MEO.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Journal of Practical Radiology Ano de publicação: 2014 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Journal of Practical Radiology Ano de publicação: 2014 Tipo de documento: Artigo