Role of MR Imaging in Diagnosis of Knee Intra and Peri-Articular Masses | ||||
| Benha Medical Journal | ||||
| Article 7, Volume 42, Issue 6, June 2025, Page 64-76 PDF (717.03 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/bmfj.2024.334580.2248 | ||||
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| Authors | ||||
Asmaa Yousef El said1; Rania Fathy Abd ELSamee  2; Hamada Mohamed Khater3
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| 1Lecturer of Radiology, Faculty of Medicine- Benha University | ||||
| 2Department of Radiodiagnosis Faculty of Medicine –Benha University | ||||
| 3Assistant professor of Radiology, Faculty of Medicine –Benha University With the submission of this manuscript, we confirm that | ||||
| Abstract | ||||
| Background: Intra-articular and peri-articular knee masses encompass a variety of non-infectious, infectious, vascular, neoplastic, and miscellaneous lesions. Magnetic resonance imaging (MRI) is a non-invasive gold standard for evaluating knee lesions, offering high-resolution visualization of soft tissues and bone structures. Aim of the work: This study aims to evaluate the role of MRI in evaluation of knee intra and peri-articular masses. Subjects and methods: A total of 50 patients (mean age: 37.1 ± 17.7 years; 64% males) presenting with knee swelling, pain, or limited movement were referred for MRI evaluation. Standard MRI protocols, including sagittal, coronal, and axial views, were used. Diagnosis was confirmed via pathology and arthroscopy. Result: MRI diagnosed 46 out of 50 cases, with an overall sensitivity of 92%. Sensitivity varied by lesion type: non-infectious lesions (94.7%), infectious (75%), vascular (50%), neoplastic (80%), and miscellaneous (95%). MRI accurately diagnosed all cases of synovial osteochondromatosis and lipoma arborescens but misclassified some cases, such as TB arthritis and synovial hemangioma. Conclusion: MRI is highly sensitive for diagnosing knee intra- and peri-articular masses, particularly non-infectious and miscellaneous lesions. However, caution is warranted when diagnosing certain infectious and vascular lesions, where accuracy is lower. | ||||
| Keywords | ||||
| MR Imaging; Knee Intra Masses; Peri-Articular Masses | ||||
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