Necrotizing Fasciitis versus Pyomyositis: Discrimination with Using MR Imaging
Korean Journal of Radiology
; : 121-128, 2009.
Article
en En
| WPRIM
| ID: wpr-60040
Biblioteca responsable:
WPRO
ABSTRACT
OBJECTIVE: We wanted to evaluate the MR findings for differentiating between necrotizing fasciitis (NF) and pyomyositis (PM). MATERIALS AND METHODS: The MR images of 19 patients with surgically confirmed NF (n = 11) and pathologically confirmed PM (n = 8) were retrospectively reviewed with regard to the presence or absence of any MRI finding criteria that could differentiate between them. RESULTS: The patients with NF had a significantly greater prevalence of the following MR findings (p < 0.05): a peripheral band-like hyperintense signal in muscles on fat-suppressed T2-weighted images (73% of the patients with NF vs. 0% of the patients with PM), peripheral band-like contrast enhancement (CE) of muscles (82% vs. 0%, respectively) and thin smooth enhancement of the deep fascia (82% vs. 13%, respectively). The patients with PM had a significantly greater prevalence of the following MRI findings (p < 0.05): a diffuse hyperintense signal in muscles on fat-suppressed T2-weighted images (27% of the patients with NF vs. 100% in the patients with PM), diffuse CE of muscles (18% vs. 100%, respectively), thick irregular enhancement of the deep fascia (0% vs. 75%, respectively) and intramuscular abscess (0% vs. 88%, respectively). For all patients with NF and PM, the superficial fascia and muscle showed hyperintense signals on T2-weighted images and CE was seen on fat-suppressed CE T1-weighted images. The subcutaneous tissue and deep fascia showed hyperintense signals on T2-weighted images and CE was seen in all the patients with NF and in seven (88%) of the eight patients with PM, respectively. CONCLUSION: MR imaging is helpful for differentiating between NF and PM.
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Texto completo:
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Banco de datos:
WPRIM
Asunto principal:
Procesamiento de Imagen Asistido por Computador
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Imagen por Resonancia Magnética
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Estudios Retrospectivos
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Músculo Esquelético
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Fascitis Necrotizante
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Diagnóstico Diferencial
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Absceso
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Piomiositis
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Fascia
Tipo de estudio:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Female
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Humans
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Male
Idioma:
En
Revista:
Korean Journal of Radiology
Año:
2009
Tipo del documento:
Article