Magnetic resonance imaging findings of synovial sarcoma in children: location-dependent differences
- 28.07.2021
- Original Article
Erschienen in:
- Verfasst von
- Amy B. Farkas
- Soroush Baghdadi
- Alexandre Arkader
- Michael K. Nguyen
- Tanvi P. Venkatesh
- Abhay S. Srinivasan
- Jie C. Nguyen
- Erschienen in
- Pediatric Radiology | Ausgabe 13/2021
Abstract
Background
While overall survival for children is greater than that for adults, synovial sarcoma remains an aggressive neoplasm with a potentially poor prognosis, and its magnetic resonance imaging (MRI) findings in children are not well described.
Objective
We aimed to characterize the spectrum of MRI findings of synovial sarcoma in children with respect to anatomical location and outcome.
Materials and methods
Children with histologically confirmed synovial sarcoma and preoperative MRI performed within the past 11 years (2009–2020) were included. Two radiologists retrospectively reviewed each MRI to categorize location, signal characteristics and associated findings. Chi-square and Fisher exact tests were used to assess associations with locations and outcomes.
Results
This study included 23 children (13 girls, 10 boys; mean age: 12.7±4.2 years) with 7 axial, 8 proximal and 8 distal appendicular lesions. Kappa ranged from 0.53 to 1. MRI findings differed significantly between locations with axial lesions measuring larger (P=0.01) and more likely to contain fluid levels (P=0.02), triple sign (P=0.02), inhomogeneous signal (T1-weighted images, P=0.003; T2-weighted images, P=0.02, contrast-enhanced images, P=0.03) with all lesions containing partially solid composition (P=0.03). At a median follow-up of 14 months (interquartile range: 7–33 months), 39% relapsed. Predictors of relapse (P<0.05) included metastasis at presentation, larger lesions, axial lesions and MRI findings of fluid level, T1-weighted hyperintensity, inhomogeneous signal (T1- and T2-weighted images) and poorly circumscribed margins.
Conclusion
A significant association was found between location and MRI findings in our cohort of children with synovial sarcoma. Axial lesions were more likely to be larger, appear heterogeneous and be associated with a worse outcome.
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- Titel
- Magnetic resonance imaging findings of synovial sarcoma in children: location-dependent differences
- Verfasst von
-
Amy B. Farkas
Soroush Baghdadi
Alexandre Arkader
Michael K. Nguyen
Tanvi P. Venkatesh
Abhay S. Srinivasan
Jie C. Nguyen
- Publikationsdatum
- 28.07.2021
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
Pediatric Radiology / Ausgabe 13/2021
Print ISSN: 0301-0449
Elektronische ISSN: 1432-1998 - DOI
- https://doi.org/10.1007/s00247-021-05142-4
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