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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 25:146-149, January 2004
© 2004 American Society of Neuroradiology

Case Report
SPINE

MR Imaging Features of Pigmented Villonodular Synovitis of the Cervical Spine

Hemant A. Parmar^a, Yih Yian Sitoh^a, Kheng Kooi Tan^b, Jennifer Teo^c, Marie Ibet S.^b and Francis Hui^a

^a Department of Neuroradiology, National Neuroscience Institute, Singapore, Republic of Singapore
^b Department of Neurosurgery, National Neuroscience Institute, Singapore, Republic of Singapore
^c Department of Neuropathology, National Neuroscience Institute, Singapore, Republic of Singapore

Address correspondence and reprint requests to Dr. Hemant Parmar, Department of Neuroradiology, National Neuroscience Institute, Level B1, Irrawaddy Block, 11, Jalan Tan Tock Seng, Singapore 308433, Republic of Singapore

Summary: Pigmented villonodular synovitis (PVNS) is a benign proliferative disorder primarily occurring in the large joints of the appendicular skeleton such as the knee and hip joints. We present an unusual case of PVNS involving the cervical spine in an adult. MR imaging showed an enhancing mass lesion arising from the posterior elements of the cervical spine and hyperintensity on the T2-weighted images, without evidence of T2 susceptibility effects. Gross total excision of the tumor was performed, and the diagnosis was established by histopathology.

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