Synovial osteochondromatosis of the ankle: MR findings

Blandino, Alfredo; Salvi, Laura; Chirico, G; Longo, Marcello; Faranda, C.; Romeo, Placido; Pandolfo, I

doi:10.1016/0899-7071(92)90087-p

Cited by 26 publications

(8 citation statements)

References 8 publications

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“…4b) [9,10,11,12], whereas ossified nodules display low signal of cortical bone peripherally and higher signal of marrow fat centrally ( Fig. 6) [9,10,13].…”

Section: Synovial Osteochondromatosismentioning

confidence: 98%

MR imaging of synovial tumors and tumor-like lesions

Narváez¹,

Narváez

Aguilera³

et al. 2001

Eur Radiol

134

104

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The clinical diagnosis of synovial tumors and tumorlike lesions is difficult, and radiographic findings may establish a confident diagnosis only in some cases. MR imaging has become the modality of choice in evaluating these lesions, because with it a presumptive diagnosis can be made in most cases. Our goal is to review the MR features of pigmented villonodular synovitis, giant-cell tumor of the tendon sheath, synovial chondromatosis, synovial hemangioma, lipoma arborescens, synovial cysts and synovial sarcoma, emphasizing those findings that suggest a specific diagnosis.

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“…4b) [9,10,11,12], whereas ossified nodules display low signal of cortical bone peripherally and higher signal of marrow fat centrally ( Fig. 6) [9,10,13].…”

Section: Synovial Osteochondromatosismentioning

confidence: 98%

MR imaging of synovial tumors and tumor-like lesions

Narváez¹,

Narváez

Aguilera³

et al. 2001

Eur Radiol

134

104

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show abstract

“…Computed tomography (CT) is the optimal radiologic modality to identify and characterize these calcified intraarticular fragments and extrinsic erosion of bone (2,7,14). The magnetic resonance (MR) imaging appearance of synovial chondromatosis is variable owing to the extent of mineralization and ossification of the chondral bodies, although the extent of involvement is exquisitely depicted (1,2,5,7,15,16). The noncalcified regions of hyaline cartilage neoplasia typically demonstrate high signal intensity on T2-weighted MR images because of the high water content of this tissue.…”

Section: Introductionmentioning

confidence: 99%

Imaging of Synovial Chondromatosis with Radiologic-Pathologic Correlation

Vidal²,

et al. 2007

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Primary synovial chondromatosis represents an uncommon benign neoplastic process with hyaline cartilage nodules in the subsynovial tissue of a joint, tendon sheath, or bursa. The nodules may enlarge and detach from the synovium. The knee, followed by the hip, in male adults are the most commonly involved sites and patient population. The pathologic appearance may simulate chondrosarcoma because of significant histologic atypia, and radiologic correlation to localize the process as synovially based is vital for correct diagnosis. Radiologic findings are frequently pathognomonic. Radiographs reveal multiple intraarticular calcifications (70%-95% of cases) of similar size and shape, distributed throughout the joint, with typical "ring-and-arc" chondroid mineralization. Extrinsic erosion of bone is seen in 20%-50% of cases. Computed tomography (CT) optimally depicts the calcified intraarticular fragments and extrinsic bone erosion. Magnetic resonance (MR) imaging findings are more variable, depending on the degree of mineralization, although the most common pattern (77% of cases) reveals low to intermediate signal intensity with T1-weighting and very high signal intensity with T2-weighting with hypointense calcifications. These signal intensity characteristics on MR images and low attenuation of the nonmineralized regions on CT scans reflect the high water content of the cartilaginous lesions. CT and MR imaging depict the extent of the synovial disease (particularly surrounding soft-tissue involvement) and lobular growth. Secondary synovial chondromatosis can be distinguished from primary disease both radiologically (underlying articular disease and fewer chondral bodies of variable size and shape) and pathologically (concentric rings of growth). Treatment of primary disease is surgical synovectomy with removal of chondral fragments; recurrence rates range from 3% to 23%. Malignant transformation to chondrosarcoma is unusual (5% of cases) and, although difficult to distinguish from benign disease, is suggested by multiple recurrences and marrow invasion. Recognizing the appearances of primary synovial chondromatosis, which reflect their underlying pathologic characteristics, improves radiologic assessment and is important to optimize patient management.

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“…Nevertheless, radiographs may only reveal an increase in soft tissue density around the affected joint [ 7 ]. Thus, in cases where plain radiography cannot demonstrate calcification or ossification, magnetic resonance imaging is particularly useful [ 6 ].…”

Section: Discussionmentioning

confidence: 99%

“…Synovial chondromatosis originating from the ankle is an exceedingly rare condition [ 6 , 7 ]. Herein, we present a case of synovial chondromatosis of the ankle joint treated by surgical excision and its outcome.…”

Section: Introductionmentioning

confidence: 99%

Synovial Chondromatosis of the Ankle Joint: Clinical, Radiological, and Intraoperative Findings

Sedeek

Choudry

Garg

2015

Case Reports in Orthopedics

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Synovial chondromatosis, also termed synovial osteochondromatosis, is a rare benign disorder characterized by the presence of cartilaginous nodules in the synovium of the joints, tendon sheaths, and bursae. It most commonly involves large joints, such as the knee, hip, and shoulder, but its presence in smaller joints has also been reported. Nevertheless, ankle involvement is unusual. The diagnosis is commonly made following a thorough history, clinical, physical, and radiographic examination. We report a case of a young patient with primary synovial chondromatosis of the ankle joint and present the clinical, radiographic, and intraoperative findings.

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Synovial osteochondromatosis of the ankle: MR findings

Cited by 26 publications

References 8 publications

MR imaging of synovial tumors and tumor-like lesions

MR imaging of synovial tumors and tumor-like lesions

Imaging of Synovial Chondromatosis with Radiologic-Pathologic Correlation

Synovial Chondromatosis of the Ankle Joint: Clinical, Radiological, and Intraoperative Findings

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