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CASE REPORT
Year : 2015  |  Volume : 30  |  Issue : 1  |  Page : 47-50

Use of yttrium-90 hydroxyapatite radiosynovectomy as a primary modality of treatment in diffuse pigmented villonodular synovitis of the knee joint: A first case report


1 Department of Nuclear Medicine and Radionuclide Therapy, Kovai Medical centre and Hospital Limited, Avanashi Road, Coimbatore, India
2 Department of Orthopedics, Ortho one Orthopedics Speciality Centre, Singanallur, Coimbatore, Tamil Nadu, India
3 Department of Orthopedics, Kovai Medical centre and Hospital Limited, Avanashi Road, Coimbatore, India
4 Isotope Applications and Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India

Correspondence Address:
Dr. Koramadai Karuppusamy Kamaleshwaran
Department of Nuclear Medicine, PET/CT and Radionuclide Therapy, Comprehensive Cancer Care Centre, Kovai Medical Centre and Hospital Limited, Coimbatore - 641 014, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-3919.147539

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Pigmented villonodular synovitis (PVNS) is a rare, relatively benign, intra-articular lesion characterized by a slowly progressive proliferation of synovial tissue. Knee is the most frequently involved joint. Localized and diffuse forms of synovial involvement were reported. In extensive diffuse cases, total synovectomy is needed, almost impossible to achieve. Hence, other treatment modalities such as intra-articular injection of yttrium-90 have been tried and shown to be effective in reducing the rate of local recurrence with "acceptable" joint damage. Radiosynovectomy is based on the irradiation of the joint synovium by the intra-articular administration of various β-emitting radiopharmaceuticals. We describe the first case report of use of yttrium-90 hydroxyapatite particulates in a 33-year-old male who presented with diffuse PVNS of knee joint as a primary modality of treatment.


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