516 results match your criteria pvns


Precedence-Constrained Colored Traveling Salesman Problem: An Augmented Variable Neighborhood Search Approach.

IEEE Trans Cybern 2021 May 25;PP. Epub 2021 May 25.

A traveling salesman problem (CTSP) as a generalization of the well-known multiple traveling salesman problem utilizes colors to distinguish the accessibility of individual cities to salesmen. This work formulates a precedence-constrained CTSP (PCTSP) over hypergraphs with asymmetric city distances. It is capable of modeling the problems with operations or activities constrained to precedence relationships in many applications. Read More

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Pigmented Villonodular Synovitis of the Glenohumeral Joint and Biceps Tendon Sheath.

Cureus 2021 Apr 17;13(4):e14529. Epub 2021 Apr 17.

Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.

A 34-year-old woman presented with paroxysmal, insidious shoulder pain with effusion. MRI demonstrated a permeative, intermediate-signal lesion on T1 and T2 sequences involving the glenohumeral joint and biceps tendon sheath. The patient was treated with arthroscopic synovectomy, debridement, and subpectoral biceps tenodesis, with histopathology demonstrating pigmented villonodular synovitis (PVNS). Read More

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Gouty tophus presenting as an anterior cruciate ligament mass in the knee: Case report and brief review of relevant literature.

Int J Surg Case Rep 2021 May 27;82:105920. Epub 2021 Apr 27.

Michael Garron Hospital, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada.

Introduction And Importance: Tophacious gout presenting at the anterior cruciate ligament (ACL) is extremely rare and difficult to differentiate from other intraarticular pathology. This is mainly due to conventional diagnostic tools, such as MRI, producing ambiguous results versus pigmented villonodular synovitis (PVNS) and ganglion cysts.

Case Presentation: Here we report an individual in their late-20s with a gouty tophus located at the origin of the ACL in the knee. Read More

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Pediatric solid intra-articular masses of the knee: prevalence, imaging features and etiologies.

Pediatr Radiol 2021 Apr 9. Epub 2021 Apr 9.

Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Chicago, IL, 60611, USA.

Background: The etiologies of pediatric solid intra-articular soft-tissue masses are not well described and can present diagnostic dilemmas.

Objective: Our hypothesis was that these entities have a limited differential diagnosis and are mostly benign.

Materials And Methods: We reviewed knee magnetic resonance imaging (MRI) scans performed at our tertiary care institution between 2001 and 2019 (n=3,915). Read More

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A severe headache due to pigmented villonodular synovitis in a rare location: facial nerve on temporomandibular joint. A case report.

Cranio 2021 Apr 9:1-4. Epub 2021 Apr 9.

Pathology Department, Haydarpa#x15F;a Numune Training and Research Hospital, Istanbul, Turkey.

: Pigmented villonodular synovitis (PVNS) is an infrequent benign tumor-like proliferative lesion developing from the synovial membranes of the joint, tendon sheath, and bursa.: A 44-year-old woman with numbness on the right side of her face, severe headaches, and swelling in temporomandibular region is presented. On head and neck magnetic resonance imaging, an encapsulated mass approximately 2 cm was detected. Read More

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Atypical and bilateral pigmented villonodular synovitis of wrist in an adolescent patient: case report and literature review.

Int J Clin Exp Pathol 2021 1;14(3):383-388. Epub 2021 Mar 1.

Department of Orthopaedic Surgery, The Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army Zhangzhou 363000, Fujian Province, China.

Background: Pigmented villonodular synovitis (PVNS) is a rare benign proliferative disorder of the synovium. It rarely occurs in adolescents, particularly in immature patients with bilateral manifestation.

Case Presentation: We present a case of atypical and bilateral PVNS of wrist in a 14-year-old boy. Read More

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Long-term functional outcomes of diffuse pigmented villonodular synovitis of knee: The role of adjuvant radiotherapy.

Medicine (Baltimore) 2021 Mar;100(12):e23794

Department of Orthopedics, Kaohsiung Veterans General Hospital, Kaohsiung.

Abstract: Diffuse pigmented villonodular synovitis (PVNS) of knee is a rare benign disease that has a destructive clinical course. Synovectomy and adjuvant radiotherapy (RT) have been reported as treatment options but literatures reporting functional outcomes were sparse. This study aimed to evaluate the long-term functional outcomes and disease control among treatment modalities through the 22 years of experience. Read More

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Pigmented Villonodular Synovitis of the Flexor Hallucis Longus Tendon Treated by Means of Tendoscopy and Endoscopic Synovectomy.

Authors:
Tun Hing Lui

J Foot Ankle Surg 2021 Feb 9. Epub 2021 Feb 9.

Department of Orthopaedics and Traumatology, North District Hospital, Sheung Shui, Hong Kong SAR, China. Electronic address:

Pigmented villonodular synovitis (PVNS) of the tendon sheath (tenosynovial giant cell tumor) is a rare disorder that is often misdiagnosed because of slow growth and an atypical presentation. Open surgical excision is the treatment of choice, although recurrence is a common complication. In this report, a case of PVNS of the flexor hallucis longus tendon in the ankle and hindfoot is described. Read More

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February 2021

Subacromial pigmented villonodular synovitis: case report and review.

J Surg Case Rep 2021 Mar 8;2021(3):rjab019. Epub 2021 Mar 8.

Traumatology Sports Center (CETE), (DOT-UNIFESP/EPM), Orthopedics and Traumatology Department of the Escola Paulista de Medicina, Federal University of São Paulo São Paulo, SP, Brazil.

Pigmented villonodular synovitis (PVNS) is a non-neoplastic proliferative process that involves synovial tissue in the joints, tendon sheaths and bursae. It usually occurs in young adults, aged 20-50 years, is characteristically monoarticular and of slow progression. Clinical symptoms are nonspecific, and joint stiffness and pain are common in long-term cases. Read More

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

World J Clin Cases 2021 Feb;9(6):1379-1385

School of International Education, Weifang Medical University, Weifang 261053, Shandong Province, China.

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. Read More

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February 2021

Systematic review: total knee arthroplasty (TKA) in patients with pigmented villonodular synovitis (PVNS).

Knee Surg Relat Res 2021 Feb 25;33(1). Epub 2021 Feb 25.

Orthopaedics Department, Whipps Cross University Hospital, Barts Health NHS Trust, Whipps Cross Road, Leytonstone, London, E11 1NR, UK.

Background: To determine the functional outcomes, complications and revision rates following total knee arthroplasty (TKA) in patients with pigmented villonodular synovitis (PVNS).

Materials And Methods: We conducted a systematic review of the literature. Five studies with a total of 552 TKAs were included for analysis. Read More

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February 2021

99mTc-MDP 3-Phase Bone Imaging in 3 Cases of Pigmented Villonodular Synovitis.

Clin Nucl Med 2021 May;46(5):405-408

From the Department of Nuclear Medicine, The Second Hospital of Jilin University, Changchun, Jilin Province, China.

Abstract: Pigmented villonodular synovitis (PVNS) is a rare proliferative synovial benign disorder, which is characterized by villonodular hyperplasia of joints, tendon sheath, and synovium; invasion of adjacent tissue; and sometimes visible hemosiderin deposition. Studies regarding bone scan findings of PVNS were relatively limited. Here, we report our findings on 99mTc-MDP 3-phase bone scan with SPECT/CT images on delayed phase in 3 patients with joint PVNS. Read More

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cIAP2 expression and clinical significance in pigmented villonodular synovitis.

J Mol Histol 2021 Apr 18;52(2):397-406. Epub 2021 Feb 18.

Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.

Pigmented villonodular synovitis (PVNS) is a rare hyperplasia disease of the synovium with a predilection for the knee in either a localized (LPVNS) or a diffuse form (DPVNS). But the exact cause is not clear. The aim of this study was to explore the relationship between the expression of cellular inhibitor of apoptosis 2 (cIAP2) and proliferation, apoptosis, invasive growth and postoperative recurrence in PVNS. Read More

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Spinal pigmented villonodular synovitis and tenosynovial giant cell tumor: A report of two cases and a comprehensive systematic review.

Clin Neurol Neurosurg 2021 Mar 12;202:106489. Epub 2021 Jan 12.

Department of Neurosurgery, Tulane Medical Center, New Orleans, LA, USA; Department of Neurosurgery, Ochsner Clinic Foundation, New Orleans, LA, USA. Electronic address:

Background And Objective: Pigmented villonodular synovitis (PVNS) is a lesion of uncertain etiology that involves the synovial membranes of joints or tendon sheaths, representing a diffuse and non-encapsulated form of the more common giant cell tumors of the synovium (GCTTS). PVNS was reclassified to denote a diffuse form of synovial giant cell tumor (TSGCT), while 'giant cell tumor of the tendon sheath (GCTTS)' was used for localized lesions. These pathologies rarely affect the axial skeleton. Read More

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An abrupt-onset shoulder joint subluxation and pseudoparalysis caused by intraarticular pigmented villonodular synovitis: A case report.

Jt Dis Relat Surg 2021 6;32(1):258-261. Epub 2021 Jan 6.

Department of Orthopedic Surgery, Nanoori Hospital Gangnam, 63-8 Nonhyun-Dong, Gangnam-gu, Seoul 06048, Republic of Korea.

Pigmented villonodular synovitis (PVNS) occurs most frequently in the knee and hand joints and is extremely rare in the shoulder joints. A 27-year-old women was admitted to our outpatient clinic with an abrupt-onset pain and limited range of motion of the left shoulder. On arthroscopic examination, localized PVNS surrounding the reactive synovitis in the posterior aspect of the subscapularis within the shoulder joint cavity. Read More

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Multistimuli-Responsive Polymeric Vesicles for Accelerated Drug Release in Chemo-photothermal Therapy.

ACS Biomater Sci Eng 2020 09 25;6(9):5012-5023. Epub 2020 Aug 25.

BK21 PLUS Center for Advanced Chemical Technology, Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Republic of Korea.

Multistimuli-responsive nanomedicines present great potential for cancer therapy, as they can be featured as simple, selective, and smart carriers that can release their payload on-demand. In this study, we prepared a multifunctional polymeric vesicular nanocarrier (PVN) based on robust and triple stimuli-responsive micelles that could encapsulate chemotherapeutic drugs (doxorubicin (DOX)) and photothermal agents (IR780 iodide) for combined chemo-photothermal therapy. The size of the PVNs was stable and uniform (∼100 nm), and its DOX and IR780 loading were high: 26. Read More

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September 2020

Pigmented Villonodular Synovitis of the Knee Joint in a 10-Year-Old Patient Treated With an All-Arthroscopic Synovectomy: A Case Report.

Cureus 2020 Dec 5;12(12):e11929. Epub 2020 Dec 5.

Orthopaedic Department, Papageorgiou General Hospital of Thessaloniki, Thessaloniki, GRC.

Pigmented villonodular synovitis (PVNS) is a relatively rare, benign lesion characterized by exuberant proliferation of the synovial tissue that most commonly affects the knee and hip joint. Magnetic resonance imaging (MRI) is the imaging modality of choice for the diagnosis of PVNS. The disease is confirmed histologically by examination of the synovial tissue removed. Read More

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December 2020

Spontaneous swelling of the ankle in a child : a difficult diagnosis.

Acta Orthop Belg 2020 Jun;86(2):342-346

The authors present a case of monoarticular localized pigmented villonodular synovitis (PVNS) in a 7-year old girl. PVNS is a rare benign disease of the synovial tissue. It is especially rare in ankles of children, with only 15 cases reported in literature. Read More

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Open synovectomy treatment for intra- and extraarticular localized pigmented villonodular synovitis of the knee: a case report.

BMC Musculoskelet Disord 2021 Jan 7;22(1):41. Epub 2021 Jan 7.

Department of Orthopaedic Surgery, Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Xi Road, 325027, Wenzhou, Zhejiang, China.

Background: Pigmented villonodular synovitis (PVNS) is a rare, benign, proliferative neoplastic process that commonly affects synovial-lined anatomic spaces. The diffuse type (DPVNS) is characterized by invasion of the entire joint synovium, while the localized type (LPVNS) is characterized by a relatively normal synovial appearance. This report describes a unique case of massive intraarticular LPVNS with an extraarticular extension through the lateral patellar retinaculum. Read More

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January 2021

[Rheumatoid arthritis combined with pigmented villonodular synovitis: A case report and literature review].

Authors:
J J Peng T Liu

Beijing Da Xue Xue Bao Yi Xue Ban 2020 Dec;52(6):1135-1139

We reported a case of rheumatoid arthritis (RA) combined with pigmented villonodular synovitis (PVNS) from Peking University People's Hospital. The clinical data were introduced and the related literature was reviewed. The clinical features, treatment and prognosis of the disease were summarized to improve clinicians' understanding of this rare disease and avoid misdiagnosis and delayed diagnosis. Read More

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December 2020

Comparison of Adrenergic and Purinergic Receptor Contributions to Vasomotor Responses in Mesenteric Arteries of C57BL/6J Mice and Wistar Rats.

J Vasc Res 2020 Dec 11;58(1):1-15. Epub 2020 Dec 11.

Department of Medical Physiology, Texas A&M University Health Science Center, Bryan, Texas, USA,

Introduction: The sympathetic nervous system can modulate arteriolar tone through release of adenosine triphosphate and norepinephrine, which bind to purinergic and adrenergic receptors (ARs), respectively. The expression pattern of these receptors, as well as the composition of neurotransmitters released from perivascular nerves (PVNs), can vary both in organ systems within and across species, such as mice and rats.

Objective: This study explores the function of α1A subtypes in mouse and rat third-order mesenteric arteries and investigates PVN-mediated vasoconstriction to identify which neurotransmitters are released from sympathetic PVNs. Read More

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December 2020

Concurrence of Pigmented Villonodular Synovitis with Calcium Pyrophosphate Deposition in a Postacute Stroke Patient.

J Med Ultrasound 2020 Jul-Sep;28(3):188-191. Epub 2020 Mar 26.

Department of Orthopaedics Surgery, MacKay Memorial Hospital, Taipei, Taiwan.

Pigmented villonodular synovitis (PVNS) is a rare synovial proliferative disease featuring hemosiderin deposits. Calcium pyrophosphate deposition (CPPD) is a crystal-induced inflammatory arthritis common in the elderly. We reported the case of a 78-year-old male who was under stroke rehabilitation when acute inflammatory and hemorrhagic knee arthritis of his paretic lower limb occurred. Read More

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Rapid destruction of shoulder joint by pigmented villonodular synovitis treated by hemiarthroplasty: A case report.

Int J Surg Case Rep 2020 1;77:138-142. Epub 2020 Nov 1.

Department of Pathology, Inje University College of Medicine, Haeundae Paik Hospital, 875 Haeundae-ro, Haeundae-gu, Busan, 48108, Republic of Korea.

Introduction: Pigmented villous nodular synovitis is an uncommon proliferative disease of the joints, and rarely reported in the shoulder. It can become symptomatic when proliferating soft tissue infiltrates a joint, causing arthritic changes including bone erosion. The literature has described the disease progression as indolent. Read More

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November 2020

Diffusion in social norms change about violence against women: A longitudinal analysis of intervention data from a cluster randomised trial.

Glob Public Health 2020 Oct 6:1-13. Epub 2020 Oct 6.

Equal Access International, Washington, DC, USA.

This study examines the diffusion effects of a Social and Behaviour Change Communication intervention in Nepal targeting gender equity and violence against women. The trial involves weekly radio programming, listening and discussion groups (LDGs), and community engagement. This longitudinal study analyses a repeated cross-sectional two-armed, pair-matched, single blinded cluster trial of a 9-month intervention. Read More

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October 2020

Pigmented Villonodular Synovitis of the Hip in Patients Undergoing Total Hip Arthroplasty: A Retrospective Case-Controlled Analysis.

J Arthroplasty 2021 03 7;36(3):1018-1022. Epub 2020 Sep 7.

Department of Orthopaedic Research, Orthopaedic Research Institute, Fort Lauderdale, FL.

Background: Pigmented villonodular synovitis (PVNS) is a condition affecting larger joints such as the hip and knee. Little is known regarding the impact of PVNS on total hip arthroplasty (THA). Therefore, the aim of this study is to determine if patients with PVNS of the hip undergoing primary THA experience greater (1) in-hospital lengths of stay (LOS); (2) complications; (3) readmission rates; and (4) costs. Read More

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Pigmented Villonodular Synovitis Mimicking an Acute Septic Hip in an Eight-Year-Old Male.

Cureus 2020 Aug 20;12(8):e9895. Epub 2020 Aug 20.

Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, USA.

Pigmented villonodular synovitis (PVNS) is a less common but known cause of joint pain in the adult population. PVNS in pediatric patients is even more rare, with only case reports of occurrence in persons under the age of 18 years. Presentation is typically that of more insidious pain and limited range of motion, and is primarily seen in the knee joint. Read More

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Cadherin-11 cooperates with inflammatory factors to promote the migration and invasion of fibroblast-like synoviocytes in pigmented villonodular synovitis.

Theranostics 2020 21;10(23):10573-10588. Epub 2020 Aug 21.

Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, People's Republic of China.

Pigmented villonodular synovitis (PVNS) is a destructive benign tumor-like hyperplastic disease that occurs in synovial tissue. Fibroblast-like synoviocytes (FLS) are the predominant cell type comprising the structure of the PVNS synovial lining layer. Due to a high recurrence rate, high invasion, migration, and cartilage destruction ability, PVNS causes substantial damage to patients and the efficacy of surgical resection is not satisfactory. Read More

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Pigmented villonodular synovitis associated with developmental dysplasia of the hip: A case report.

Int J Surg Case Rep 2020 11;74:260-262. Epub 2020 Aug 11.

Kscien Organization, Hamdi Str, Azadi Mall, Sulaimani, Kurdistan, Iraq.

Introduction: Pigmented villonodular synovitis (PVNS) of the hip joint associated with developmental dysplasia of the hip joint (DDH) is an extremely rare co-presentation. The aim of this study is to report a case of PVNS associated with DDH.

Presentation Of Case: A 26-year-old women, a known case of DDH, presented with progressive right hip pain for one month duration. Read More

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Pigmented villonodular synovitis does not influence the outcomes following cruciate-retaining total knee arthroplasty: a case-control study with minimum 5-year follow-up.

J Orthop Surg Res 2020 Sep 7;15(1):388. Epub 2020 Sep 7.

Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.

Background: Pigmented villonodular synovitis (PVNS) is a rare synovial disease with benign hyperplasia, which has been successfully treated with total knee arthroplasty (TKA). The purpose of this study was to investigate the middle-term follow-up outcomes of cruciate-retaining (CR) TKA in patients with PVNS.

Methods: From January 2012 to December 2014, a retrospective study was conducted in 17 patients with PVNS who underwent CR TKA as PVNS group. Read More

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September 2020

Acupuncture improves postoperative symptoms of pigmented villonodular synovitis: A protocol for systematic review and meta analysis.

Medicine (Baltimore) 2020 Aug;99(33):e21748

Outpatient Department of Sichuan Orthopedic Hospital.

Background: Pigmented villonodular synovitis (PVNS) is a benign proliferative disease of synovial joint, synovial sac and tendon sheath. PVNS is usually treated by surgery, but postoperative joint dysfunction and pain will be accompanied, which seriously affects the quality of life. The purpose of this review is to evaluate the effectiveness and safety of this intervention in patients with pain and dysfunction caused by postoperative symptoms of PVNS. Read More

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