We report a 24-year-old male who was admitted to the emergency department with an unusual com- plaint of locked hip joint. Magnetic resonance imaging (MRI) showed a 3-cm intra-articular synovial nodular mass and a 3.0x2.4x1.6-cm yellow-brownish colored pediculed synovial nodular mass was excised with hip arthroscopy. Pathological examination confirmed the diagnosis of pigmented villon- odular synovitis. Excision of the mass allowed prompt resolution of the symptoms and there was no sign of recurrence at 3-year follow-up.
Tyler WK, Vidal AF, Williams RJ, Healey JH. Pig- mented villonodular synovitis. J Am Acad Orthop Surg 2006;14:376-85.
de Visser E, Veth RP, Pruszczynski M, Wobbes T, Van de Putte LB. Diffuse and localized pigmented villonodular synovitis: evaluation of treatment of 38 patients. Arch Or- thop Trauma Surg 1999;119:401-4.
Cheng XG, You YH, Liu W, Zhao T, Qu H. MRI features of pigmented villonodular synovitis (PVNS). Clin Rheu- matol 2004;23:31-4.
Frassica FJ, Bhimani MA, McCarthy EF, Wenz J. Pig- mented villonodular synovitis of the hip and knee. Am Fam Physician 1999;60:1404-15.
Chou PH, Huang TF, Lin SC, Chen YK, Chen TH. Sy- novial chondromatosis presented as knocking sensation of the knee in a 14-year-old girl. Arch Orthop Trauma Surg 2007;127:293-7.
Kelly BT, Weiland DE, Schenker ML, Philippon MJ. Ar- throscopic labral repair in the hip: surgical technique and review of the literature. Arthroscopy 2005;21:1496-504.
Rao J, Zhou YX, Villar RN. Injury to the ligamentum teres. Mechanism, findings, and results of treatment. Clin Sports Med 2001;20:791-9.
Tanzer M, Noiseux N. Osseous abnormalities and early osteoarthritis: the role of hip impingement. Clin Orthop Relat Res 2004;429:170-7.
Aglietti P, Di Muria GV, Salvati EA, Stringa G. Pigment- ed villonodular synovitis of the hip joint (review of the lit- erature and report of personal case material). Ital J Orthop Traumatol 1983;9:487-96.
Yoo JJ, Kwon YS, Koo KH, Yoon KS, Min BW, Kim HJ. Cementless total hip arthroplasty performed in patients with pigmented villonodular synovitis. J Arthroplasty 2010;25:552-7.
Chung SM, Janes JM. Dıffuse pıgmented vıllonodular synovıtıs of the hıp joınt. revıew of the lıterature and re- port of four cases. J Bone Joint Surg Am 1965;47:293- 303.
Rydholm U. Pigmented villonodular synovitis of the hip joint. Int Orthop 1987;11:307-10.
Carr CR, Berley FV, Davıs WC. Pigmented villonodular synovitis of the hip joint; a case report. J Bone Joint Surg Am 1954;36-A:1007-13.
Vastel L, Lambert P, De Pinieux G, Charrois O, Ker- boull M, Courpied JP. Surgical treatment of pigmented villonodular synovitis of the hip. J Bone Joint Surg Am 2005;87:1019-24.
Janssens X, Van Meirhaeghe J, Verdonk R, Verjans P, Cuvelier C, Veys EM. Diagnostic arthroscopy of the hip joint in pigmented villonodular synovitis. Arthroscopy 1987;3:283-7.
Krebs VE. The role of hip arthroscopy in the treatment of synovial disorders and loose bodies. Clin Orthop Relat Res 2003;406:48-59.
Gödde S, Kusma M, Dienst M. Synovial disorders and loose bodies in the hip joint. Arthroscopic diagnostics and treatment. [Article in German] Orthopade 2006;35:67- 76. [Abstract]
Byrd JW, Jones KS, Maiers GP 2nd. Two to 10 Years' follow-up of arthroscopic management of pigmented vil- lonodular synovitis in the hip: a case series. Arthroscopy 2013;29:1783-7.