Synovial Tumors

Vanhoenacker, Filip; Goethem, Johan Van; Vandevenne, Jan; Shahabpour, Maryam

doi:10.1007/3-540-30792-3_19

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…The exact reason is unidentified, but the most reasonable hypothesis suggests a nonspecific synovial response to traumatic or inflammatory stimuli more willingly than a neoplasm. Lipoma arborescens can be confidently diagnosed because of its characteristic imaging findings [1,2,[18][19][20][21][22][23][24]. MRI was able to diagnose all the cases of lipoma arborescens in the current series, all complained of painless swelling of the knee and they appear in MRI as intra-articular frond like fat-containing masses at the supra-patellar region (high signal at T1, T2, and suppressed at STIR) and was proved by arthroscopy in agreement with Pushpender Gupta et al [18] who reported similar clinical presentation, and reported its more common predilection to the supra-patellar recess of the knee.…”

Section: Discussionmentioning

confidence: 99%

“…Intra-articular ganglion cysts are frequently seen in the dorsal wrist, shoulder, and palm but rarely to be intraarticular in the knee joint, usually detected as incidental MRI findings [1,2,7,27].…”

Section: Discussionmentioning

confidence: 99%

“…The synovial membrane is originating from embryonic mesenchyme and outline nonarticular areas in synovial joints, sheaths of the tendons, and bursae. Synovial membrane cells produce hyaluronate, which is a main component of the synovial fluid and normalize the exchange of substances between synovial fluid and the blood [1].…”

Section: Introductionmentioning

confidence: 99%

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

Mohey

Hassan

2020

Egypt J Radiol Nucl Med

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Background: Classifications of intra-articular masses are infectious granulomatous diseases, non-infectious synovial proliferative processes (synovial chondromatosis, lipoma arborescens, rheumatoid arthritis, pigmented villonodular synovitis [PVNS]), vascular malformations, deposition disorders, neoplastic, and miscellaneous conditions. The aim of this study is to correlate the results of MRI with arthroscopy in characterization of different varieties of intra-articular synovial masses and mass-like lesions. This observational prospective study was conducted between February 2018 and August 2019. We screened 1000 routine musculoskeletal MRI examination during this period, 32 of which showed intra-articular synovial masses/mass-like lesions. The selected 32 patients (20 males and 12 females) have a mean age of 49.20 ± 2.0 years; all presented with joint swelling, pain, or difficulty of movement according to the joint affected. All patients underwent arthroscopy for histopathological correlation. Results: The final diagnosis was synovial chondromatosis in 14 patients (43.8%), PVNS in ten patients (31.3%), and lipoma arborescens in five patients (15.6%). Synovial chondrosarcoma, synovial hematoma, and synovial ganglion cyst each in one patient (3.1%). The concordance of MRI to arthroscopy was 96.6% accuracy, 91.7% sensitivity, 99% specificity, 52.3% PPV, and 99.9% NPV. Conclusion: Good correlation was observed between MRI and arthroscopy in diagnosis of intra-articular synovial masses/mass-like lesions.

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