医学
横纹肌肉瘤
软组织
放射科
软组织肉瘤
肉瘤
多参数磁共振成像
病变
模式治疗法
病理
磁共振成像
癌症
外科
内科学
前列腺癌
作者
Emilio J. Inarejos Clemente,María Navallas,Ignasi Barber,Mariona Suñol,Josep Munuera,Ferrán Torner,Moira Garraus,Oscar M. Navarro
标识
DOI:10.1148/rg.2020190119
摘要
Soft-tissue sarcomas in children comprise a heterogeneous group of entities with variable manifestation depending on the age of the patient and the location of the tumor. MRI is the modality of choice for evaluating musculoskeletal soft-tissue tumors and plays a paramount role in both initial diagnosis and assessment of tumor response during and after treatment. Conventional MRI sequences, such as T1- and T2-weighted imaging, offer morphologic information, which is important for localizing the lesion and describing anatomic relationships but not accurate for determining its malignant or benign nature and may be limited in differentiating tumor response from therapy-related changes. Advanced multiparametric MRI offers further functional information that can help with these tasks by using different imaging sequences and biomarkers. The authors present the role of MRI in rhabdomyosarcoma and other soft-tissue sarcomas in children, emphasizing a multiparametric approach with focus on the utility and potential added value of diffusion-weighted imaging (DWI) and dynamic contrast-enhanced MRI in characterization and staging, determination of pretreatment extent, and evaluation of tumor response and recurrence after treatment. ©RSNA, 2020
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