Tenosynovial Giant Cell Tumor, Diffuse Type/Pigmented Villonodular Synovitis in a Pars Defect. Issue 12 (15th June 2015)

• Record Type: Journal Article
• Authors: Kimura, Tetsuya; Nishisho, Toshihiko; Sakai, Toshinori; Miyagi, Ryo; Takao, Shoichiro; Iwamoto, Seiji; Higashino, Kosaku; Takata, Yoichiro; Goda, Yuichiro; Toki, Shunichi; Sairyo, Koichi
• Is Part Of: Spine. Volume 40:Issue 12(2015)
• Publication Date: 2015-06-15
• Subjects: Spine -- Abnormalities -- Periodicals; Spine -- Diseases -- Periodicals; Spine -- Surgery -- Periodicals; 616.73005
• DOI: 10.1097/BRS.0000000000000923
• Languages: English
• ISSNs: 0362-2436

Abstract

<abstract> <title> <x xml:space="preserve">Abstract</x> </title> <sec> <title>Study Design.</title> <p>Case report.</p> </sec> <sec> <title>Objective.</title> <p>To describe a rare case of tenosynovial giant cell tumor, diffuse type/pigmented villonodular synovitis (PVNS) in a pars defect in a patient with lumbar spondylolysis.</p> </sec> <sec> <title>Summary of Background Date.</title> <p>PVNS rarely occurred in lumbar spine, and no studies in the English literature have reported PVNS in a pars defect in lumbar spondylolysis.</p> </sec> <sec> <title>Methods.</title> <p>The patient was a 14-year-old female presented with a 5-month history of low back pain. Plain radiography showed spondylolysis at L5 and computed tomography revealed a 1 × 2-cm slightly eroding tumorous mass at the left L5 pars. On magnetic resonance imaging, the mass showed intermediate intensity and gadolinium enhancement on T1-weighted images (WI) and high intensity on T2-WI and T2 STAR-WI. After undergoing computed tomography–guided needle biopsy, a pathological diagnosis of PVNS was made and total gross resection was performed.</p> </sec> <sec> <title>Results.</title> <p>The gross appearance and the postoperative pathological diagnosis were consistent with PVNS. The postoperative clinical course was uneventful and postoperative computed tomography and magnetic resonance imaging revealed no residual lesion.</p> </sec> <sec> <title>Conclusion.</title> <p>This is the first report of PVNS occurring in spondylolysis.</p> <p> <bold>Level of Evidence:</bold> N/A</p> </sec> </abstract>