Reactive synovitis of the knee joint: MR imaging appearance with arthroscopic correlation

Bredella, Miriam A.; Tirman, P. F. J.; Wischer, Thorsten; Belzer, John P.; Taylor, Andrew G.; Genant, Harry K.

doi:10.1007/s002560000259

Cited by 30 publications

(19 citation statements)

References 18 publications

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“…The two commonest diagnoses were diffuse PVNS and chronic reactive synovitis, which together accounted for 60% of cases and should be given appropriate weighting in the differential diagnosis. A previous report of the MRI features of reactive synovitis describes thickening and hyperintensity of the synovium with frond-like projections seen on proton density and T2-W fat saturated sequences [19]. In our study the presence of low SI synovium on T2-W images was more indicative of PVNS rather than chronic reactive synovitis.…”

Section: Discussionmentioning

confidence: 55%

Characterisation of intra-articular soft tissue tumours and tumour-like lesions

Adams

Saifuddin

2006

Eur Radiol

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The aim of this study was to describe a new magnetic resonance imaging (MRI) classification system for intra-articular soft tissue tumours based on the morphology of the lesion, with the aim to aid the differential diagnosis. We performed a retrospective review of 52 consecutive patients presenting to a specialist musculoskeletal oncology unit with a suspected intra-articular tumour. Lesions were categorised into one of four groups according to a simple classification system based on their morphological features on MRI. Distinct groupings of pathologies emerged corresponding to each of the morphological categories. Particularly when combined with radiographic features of calcification and bone erosion, certain patterns were found to be characteristic of specific diagnoses. For example multifocal, calcified lesions were found exclusively in synovial osteochondromatosis and diffuse synovitis with hypointense T2-weighted signal intensity was typical of pigmented villonodular synovitis. Certain combinations of imaging features such as diffuse solid lesions and focal lesions with bone erosion were commonly associated with malignant lesions. We suggest that by classifying intra-articular masses according to their morphological features on MRI, particularly when combined with simple radiographic features, an additional parameter may be generated to aid the radiologist in making a diagnosis. In addition, particular combinations of features provide 'red flags' to increase the index of suspicion for malignancy.

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Section: Discussionmentioning

confidence: 55%

Characterisation of intra-articular soft tissue tumours and tumour-like lesions

Adams

Saifuddin

2006

Eur Radiol

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“…The diagnostic value of PD-weighted SE images has been established. However, there have been reported limitations of PD-and T2-weighted fast SE sequences such as artifacts (patient motion and pulsation flow artifacts) that are created from volume averaging and signal enhancement artifacts [3,4].…”

Section: Discussionmentioning

confidence: 99%

“…Proton density (PD)-weighted MRI sequences are well suited for the visualization of internal structures of the knee joint such as synovium, menisci, ligaments and tendons as well as hyaline cartilage [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Elimination of motion and pulsation artifacts using BLADE sequences in knee MR imaging

Lavdas

Mavroidis

Hatzigeorgiou³

et al. 2012

Magnetic Resonance Imaging

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“…1). 3 Inflammatory synovitis is typically high in signal on fluid-sensitive sequences. Sometimes in more advanced stages, one can manipulate window and level on a PACS (Picture Archiving and Communication System) workstation to recognize synovitis as fronds that have lower signal than adjacent high-signal effusion on fat-suppressed proton-density or T2-weighted sequences (Fig.…”

Section: Synovium/synovitismentioning

confidence: 99%