Case Of Localized Pigmented Villonodular Synovitis Research Articles

Localized Pigmented Villonodular Synovitis of the Proximal Tibiofibular Joint

Pigmented villonodular synovitis (PVNS) is a rare disease. It is a benign neoplastic process typically affecting young to middle-aged adults and most commonly involving the knee, hip, and shoulder joints. The symptoms include diffuse pain and swelling with discomfort. We report a rare case of localized PVNS originating at the proximal tibiofibular joint in a 39-year-old female patient with radiologic changes for short duration of time. The clinical history, plain radiographs, magnetic resonance imaging, and pathologic findings of the reported patient were reviewed. Complete surgical excision was performed and there was no evidence of recurrence after one-year follow-up.

Clustered Localized Pigmented Villonodular Synovitis

Abstract The localized form of pigmented villonodular synovitis (PVNS) is a rare pathologic entity characterized by limited involvement of the synovium. In the knee joint, which is the most commonly affected joint, the disorder generally presents as a single nodular lesion, or rarely as 2 or 3 multiple nodular lesions into the joint. We report 2 cases of localized PVNS in which multiple nodules were clustered in a limited patella fat pad area. Clustered, multiple nodular lesions in a limited area suggested to us to consider a variant of localized forms.

Localized pigmented villonodular synovitis attached to the posterior cruciate ligament of the knee

Localized pigmented villonodular synovitis (PVNS) of the knee joint is a rare pathological entity characterized by a limited involvement of the synovium. We report on a case of localized PVNS which was attached to the posterior cruciate ligament and presented pain without mechanical symptoms. The lesion did not reach dimensions sufficient to interfere with joint function. After arthroscopic removal of the tumor, the patient has maintained asymptomatic status during the 2 year follow-up period.

Localized Pigmented Villonodular Synovitis of Joints

Background: Pigmented villonodular synovitis (PVNS) occurs in three forms: giant cell tumors of tendon sheaths or bursae, diffuse PVNS of joints, and localized PVNS of joints. Both the diffuse form and the localized form of PVNS of joints are rare disease entities that most often affect the knee joint. The over-all annual incidence rate is 1.8 patients per million in the general population. Six cases of intra-articular localized PVNS were reviewed in this study. Methods: The records of all six patients who had received surgical treatment and pathology-proven localized PVNS of joints between June 1988 and February 1999 were reviewed. The material review included clinical notes, operative records, pathological reports, preoperative and postoperative imaging studies, and histological reports. All patients were called for a follow-up evaluation, and all of them were seen and examined. Results: There were two men and four women. The average age was 37 years (range, 19 to69 years). PVNS was located in the knee joints and managed with marginal excision by either open arthrotomy or arthroscopic operation in all cases. There was no evidence of recurrence at the follow-up evaluation (range, 12 to 126 months: average, 56.3 months). The average duration from onset of symptoms to presentation was 10.7 months-(range, 3 to 36 months). Discomfort was the most common complaint in the clinic (6/6). Conclusions: Preoperative diagnosis is difficult without the use of MR imaging. Painless hemarthrosis is not as common as that reported in the literature, and the ages of these cases are younger than those of patients with diffuse PVNS. The symptoms are more acute in cases of localized PVNS of joints. Marginal excision is the appropriate treatment for patients with localized PVNS.

Localized pigmented villonodular synovitis of the knee: report of four cases

Localized pigmented villonodular synovitis (PVNS) is a rare idiopathic disease, usually associated with symptoms mimicking those of other intraarticular pathologies. The disease usually affects a single joint, the knee joint being the most common joint. Total resection is the preferred treatment. Recurrence is very rare. In this study we present four cases of localized PVNS (1 male, 3 females, at the ages of 36, 19, 59, and 26 years) who were treated with arthroscopic intervention. Clinical results were favorable during follow-up and no early recurrences were encountered.

Case Report Localized pigmented villonodular synovitis of the knee: arthroscopic treatment

Pigmented villonodular synovitis (PVNS) is a relatively rare condition. It occurs in two forms: a diffuse form involves the entire synovium and occurs in the majority of cases, and a localized form involves a discrete section of the synovium. The disorder almost always involves a single joint and the knee is most commonly affected. We report on three cases of localized PVNS that involved the patellar fat pad and synovium. Diagnostic and therapeutic arthroscopies were performed, and typical localized PVNS was found. Complete resection of the lesions was performed arthroscopically. Arthroscopy can be used as an effective diagnostic and therapeutic tool for identification and treatment of intra-articular localized PVNS of the knee.Arthroscopy 1998 Oct;14(7):764-8

Localized pigmented villonodular synovitis of the knee: report of two cases of fat pad involvement

The localized form of pigmented villonodular synovitis (PVNS) is a rare pathological entity characterized by a limited involvement of the synovium. The knee is most commonly affected. In the knee joint, the disorder generally presents as a nodular, pedunculated lesion protruding into the articular cavity. The lesion is usually revealed by mechanical symptoms such as locking. We report on two cases of localized PVNS that involved the patellar fat pad, an extremely rare area of involvement. Mechanical symptoms were not present. In one case, the lesion reached considerable dimensions without interfering with joint function. Arthroscopic treatment was easily performed. No recurrence was observed at 1-year follow up. Arthroscopy 1998 Jul-Aug;14(5):527-31

Localized pigmented villonodular synovitis of the knee

Pigmented villonodular synovitis (PVNS) is a well-recognized lesion that may affect any joint but is frequently found in the knee. It is a rare condition, especially in the localized form, and is still cause for discussion regarding to its pathogenesis and treatment. We report four cases of localized PVNS each one presenting with different clinical signs and symptoms. In one of our cases, a pedunculated mass and villous-like projections of the surrounding synovium were associated. Each case was studied with magnetic resonance imaging, treated arthroscopically, and the diagnosis confirmed by histological examination. Arthroscopy is an effective tool for both diagnosis and treatment. Arthroscopy 1998 Jul-Aug;14(5):532-6

Localized pigmented villonodular synovitis of the patellar fat pad: A report of two cases

Pigmented villonodular synovitis (PVNS) of the knee is a well-recognized entity. We report on two cases of localized PVNS that involved the patellar fat pad, an area of involvement not previously reported. Diagnostic and therapeutic arthroscopies were performed, and typical findings of localized PVNS were found. Complete resection of the lesions were performed arthroscopically. At short-term follow-up, all symptoms had resolved. Arthroscopy can be used as an effective diagnostic tool for identification of intraarticular PVNS of the knee. In the case of localized involvement, it also can be considered as definitive treatment.

Magnetic Resonance Imaging in the Diagnosis of Localized Pigmented Villonodular Synovitis of the Ankle: A Case Report

The use of magnetic resonance imaging (MRI) in pigmented villonodular synovitis (PVS) has been well described in the literature. MRI has been used predominantly with diffuse PVS lesions. We recently had a patient with an unusual case of localized PVS of the ankle with bone and cartilage destruction. Preoperative MRI was useful in the diagnosis of localized PVS and in the planning for surgery. MRI in a patient with this lesion had not been documented previously, but should be considered whenever PVS, either diffuse or localized PVS, is suspected.