Musculoskeletal Radiology. PVNS or pseudo aneurysm: MRI‑problem solving or misleading?

Autor: Sannananja, Bhagya, Shah, Hardik Uresh, Laxman, Varun, Nagesh, Chinmay
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Zdroj: Indian Journal of Radiology & Imaging; Feb2015, Vol. 25 Issue 1, p60-62, 3p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index