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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2015; 25(01): 60-62
DOI: 10.4103/0971-3026.150152
Musculoskeletal Radiology

PVNS or pseudo aneurysm: MRI-problem solving or misleading?

Bhagya Sannananja
Department of Radiology, Shri Harilal Bhagwati Municipal Corporation Hospital, Mumbai, India
,
Hardik Uresh Shah
Department of Radiology, Shri Harilal Bhagwati Municipal Corporation Hospital, Mumbai, India
,
Varun Laxman
Department of Radiology, Bharatratna Dr. Babasaheb Ambedkar Hospital, Mumbai, India
,
Chinmay Nagesh
Department of Radiology, Shri Harilal Bhagwati Municipal Corporation Hospital, Mumbai, India
› Author Affiliations Financial support and sponsorship Nil.
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Abstract

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.

Keywords

Dislocation - magnetic resonance imaging - pigmented villonodular synovitis - pseudoaneurysm


Publication History

Article published online:
30 July 2021

© 2015. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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