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MUSCULOSKELETAL RADIOLOGY Table of Contents   
Year : 2015  |  Volume : 25  |  Issue : 1  |  Page : 60-62
PVNS or pseudo aneurysm: MRI-problem solving or misleading?


1 Department of Radiology, Shri Harilal Bhagwati Municipal Corporation Hospital, Mumbai, India
2 Department of Radiology, Bharatratna Dr. Babasaheb Ambedkar Hospital, Mumbai, India

Correspondence Address:
Dr. Bhagya Sannananja
Department of Radiology, Shri Harilal Bhagwati Municipal Corporation Hospital, Mumbai
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-3026.150152

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Pigmented villonodular synovitis (PVNS) is a benign neoplastic process affecting the synovium.Magnetic resonance imaging (MRI) is considered as the imaging modality of choice, where PVNS is seen as a soft tissue lesion affecting the synovium with characteristic hypointense signal on T2-weighted images (T2WI) and typically blooming on gradient echo (GRE) sequences. MRI can sometimes be misleading, with many non-neoplastic pathologies having a tendency of recurrent bleeding closely mimicking PVNS. We report a case  of pseudoaneurysm from posterior circumflex humeral artery, a branch of axillary artery, secondary to recurrent shoulder dislocation mimicking PVNS on MRI.


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