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Table 2 MRI diagnosis of the synovial lesions compared to arthroscope and their concordance

From: Feasibility of MRI in diagnosis and characterization of intra-articular synovial masses and mass-like lesions

 MRI diagnosisArthroscopyTotal
1. Synovial chondromatosis151414 (43.8%)
2. PVNS101010 (31.3%)
3. Lipoma arborescence555 (15.6%)
4. Synovial chondrosarcoma11 (3.1%)
5.Synovial hematoma111(3.1%)
6. Ganglion cyst111(3.1%)
Total323232
Concordance of MRI and arthroscopy
 Accuracy96.9%
 Sensitivity91.7%
 Specificity99%
 PPV52.3%
 NPV99.9%