Diffuse Pigmented Villonodular Synovitis of the Subtalar Joint

Tritschler, Pierre; Baudrez, V.; Mutijima, E

doi:10.5334/jbsr.1477

Cited by 9 publications

(9 citation statements)

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“…D-TGCT usually shows contrast enhancement after injection of gadolinium-based contrast agent; therefore, contrastenhanced MR imaging is useful for the diagnosis of D-GCT [7,[17][18][19]. In the present study, all five patients with nonhemophilic HS showed minimal to mild enhancement of the thickened synovium with superficial linear enhancement, whereas all four patients with D-TGCT showed moderate to severe enhancement.…”

Section: Discussionsupporting

confidence: 46%

MR imaging findings for differentiating nonhemophilic hemosiderotic synovitis from diffuse-type tenosynovial giant cell tumor of the knee

et al. 2020

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Purpose To evaluate the differences in MR findings between nonhemophilic hemosiderotic synovitis (HS) and diffuse-type tenosynovial giant cell tumor (D-TGCT) of the knee. Methods This study included 13 patients with histopathologically confirmed intra-articular hemosiderin deposition of the knee (eight with nonhemophilic HS and five with D-TGCT) who underwent preoperative MR imaging including T2*weighted images (T2*WI). We retrospectively reviewed the MR images and compared MR findings between the two pathologies. Results Lateral meniscus tear and lateral articular cartilage injury (88% vs. 20%, p < 0.05) and distribution in the suprapatellar bursa of the maximum thickness of T2* hypointense synovium (75% vs. 0%, p < 0.05) were significantly more frequent in nonhemophilic HS than in D-TGCT, respectively. Among patients who underwent contrast-enhanced imaging, all five patients with nonhemophilic HS showed minimal to mild enhancement of the thickened synovium with superficial linear enhancement, whereas all four patients with D-TGCT showed moderate to severe enhancement (p < 0.01). Conclusion As compared with D-TGCT, lateral meniscus tear, lateral articular cartilage injury, lesser degree of contrast enhancement of the thickened synovium, and distribution in the suprapatellar bursa of the maximum thickness of T2* hypointense synovium were characteristic features of nonhemophilic HS.

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Section: Discussionsupporting

confidence: 46%

MR imaging findings for differentiating nonhemophilic hemosiderotic synovitis from diffuse-type tenosynovial giant cell tumor of the knee

et al. 2020

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“…PVNS is a subtype of tenosyvial giant cell tumors that affect the soft tissue lining of joints and tendons. PVNS was first described in 1941 by Jaffe et al [3] , who considered it as a benign disease with characteristics of focal or diffuse proliferative of villonodular synovial membranes and hemosiderin deposition. Only a small number of malignant transformation was reported.…”

Section: Discussionmentioning

confidence: 99%

Pigmented villonodular synovitis of the knee in a child: a case report

Hoa¹,

Ngoc²,

Chau³

et al. 2022

Radiology Case Reports

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“…Diffuse PVNS is an uncommon disease with 75% of reported cases involving the knee. Cases involving the subtalar joint are rare[ 8 , 9 ]. At present, MRI is a specific method for the preliminary diagnosis of diffuse PVNS.…”

Section: Discussionmentioning

confidence: 99%

Subtalar joint pigmented villonodular synovitis misdiagnosed at the first visit: A case report

Zhao

et al. 2021

WJCC

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BACKGROUND Pigmented villonodular synovitis (PVNS) is an uncommon disease that usually occurs in large joints, and involvement of the subtalar joint is rare. The lack of comprehensive knowledge of subtalar joint PVNS could lead to misdiagnosis. CASE SUMMARY We present a 64-year-old woman who, at her first visit, complained of discomfort in the right ankle when she walked. Based on the physical signs and X-ray report, the physician failed to make the suspected diagnosis of PVNS. Eighteen months later, the patient returned with a complaint of a mass in her right lateral malleolus with intermittent blunt pain. The X-ray presented an osteophyte formation and soft tissue calcification at the margin of the subtalar joint. The laboratory tests were normal, whereas magnetic resonance imaging (MRI) showed a low-intensity area on both T1- and T2-weighted images. A suspected diagnosis of PVNS was made and later confirmed by postoperative pathology. Subsequently, the patient received radiotherapy with 32 Gy in 16 fractions. At 6 mo postoperatively, the patient only complained of discomfort after walking three blocks. The American Orthopedic Foot and Ankle Society Ankle–Hindfoot score was 97. CONCLUSION MRI is necessary for the diagnosis of PVNS. Early soft tissue calcification and painless joint swelling should be of concern.

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Diffuse Pigmented Villonodular Synovitis of the Subtalar Joint

Cited by 9 publications

References 1 publication

MR imaging findings for differentiating nonhemophilic hemosiderotic synovitis from diffuse-type tenosynovial giant cell tumor of the knee

MR imaging findings for differentiating nonhemophilic hemosiderotic synovitis from diffuse-type tenosynovial giant cell tumor of the knee

Pigmented villonodular synovitis of the knee in a child: a case report

Subtalar joint pigmented villonodular synovitis misdiagnosed at the first visit: A case report

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