No abstract available.
Synovitis, Pigmented Villonodular*

No abstract available.
Synovitis, Pigmented Villonodular*

No Abstract Available.
Knee* ; Synovitis, Pigmented Villonodular*

No Abstract Available.
Knee* ; Synovitis, Pigmented Villonodular*

Localized nodular synovitis of the knee joint is a rare benign tumorous condition, and should be differentially diagnosed with pigmented villonodular synovitis. We report a case of localized nodular synovitis in the knee that was noted to have a pedicle and characteristic findings on MR image.
Knee Joint ; Knee* ; Magnetic Resonance Imaging* ; Synovitis* ; Synovitis, Pigmented Villonodular

Localized pigmented villonodular synovitis is a monoarticular proliferative condition that may affect any joint but is frequently found in the knee. The locaiized form was less frequent than the diffuse one. The estimated frequency of localized pigmented villonodular synovitis among patients performed an arthroscopic procedure was known one case lor each 2,500 cases. Previous reports pointed that the lower recurrence rate after the arthroscopic excision for localized form. We also experienced a case of localized pigmented viilonodular synovitis located at the posterior compartment of the knee, so we report this case with review of literatures.
Humans ; Joints ; Knee* ; Recurrence ; Synovitis ; Synovitis, Pigmented Villonodular*

To the best of our knowledge, there have been no documented cases of isolated pigmented villonodular synovitis in the proximal tibiofibular joint in Korea. We have experienced satisfactory outcome by performing excision in a patient who has isolated, localized form, pigmented villonodular synovitis in the proximal tibiofibular joint. We report on this case along with briefly reviewing the related literature.
Humans ; Joints ; Korea ; Synovitis, Pigmented Villonodular

Pigmented villonodular synovitis (PVNS) in ankle is relatively uncommon. This disorder results in increased proliferation of synovium causing villous or nodular changes containing histiocytes, fibroblasts, multinucleated giant cell, and hemosiderin. PVNS is classified into two different type : localized and diffuse. Diffuse type of PVNS in ankle is more common than localized type. Also, recurrence of diffuse type is more frequent. We report a case of diffuse type of PVNS which was recurred soon after the excision.
Ankle Joint* ; Ankle* ; Fibroblasts ; Giant Cells ; Hemosiderin ; Histiocytes ; Recurrence ; Synovial Membrane ; Synovitis ; Synovitis, Pigmented Villonodular*

Pigmented villonodular synovitis(PVNS) is a synovial lesion of joints or tendon sheaths, characterized by villous and nodular overgrowth of the synovial membrane. It commonly occurs in synovial joints of the appendicular skeleton, particularly those of the knee and hip, but rarely affecting those of the spine. We report a case of PVNS of the lumbar spine mimicking epidural mass.
Hip ; Joints ; Knee ; Skeleton ; Spine* ; Synovial Membrane ; Synovitis ; Synovitis, Pigmented Villonodular* ; Tendons

Pigmented villonodular synovitis (PVNS) is a rare benign condition that is locally aggressive and may destructively invade the surrounding soft tissues and bone causing functional loss of the joint and the limb. The knee is the most affected joint (range, 28% to 70%) but involvement of the bone is not a common feature seen at this site. We present a rare case of diffuse PVNS of the knee associated with subchondral cyst of the lateral femoral condyle. This posed a diagnostic dilemma because of bone invasion. The radiological image of synovitis was pathognomonic of PVNS but etiology of the osteolytic lesion was confirmed only on histopathology. The large osteochondral defect was eventually managed in a staged manner with bone grafting and osteochondral autograft transfer.
Autografts ; Bone Cysts ; Bone Transplantation ; Cartilage ; Extremities ; Joints ; Knee ; Synovitis ; Synovitis, Pigmented Villonodular