MRI features not predictive of desmoid tumor behavior on active surveillance

No qualitative or quantitative MRI features were significantly associated with tumor behavior in desmoid-type fibromatosis during active surveillance in a 24-patient study, suggesting limited standalone predictive value.

• Interobserver agreement for qualitative MRI features was substantial to almost perfect, and excellent for quantitative measurements.
• Although MRI remains essential for monitoring tumor size, its standalone value for predicting behavior during active surveillance may be limited.

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