Presentation
Knee pain.
Patient Data
Age: 50 years
Gender: Female
From the case:
Focal pigmented villonodular synovitis (PVNS)
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A small localized nodular synovial proliferation is seen indenting the superolateral aspect of the infra-patellar Hoffa's pad of fat, it is seen demonstrating hypointense T1 and hyperintense STIR / PD fat suppression signal. It measures 14 X 13 X 11 mm in its main diameters.
Mild joint effusion.
No meniscal tear. Intact cruciate and collateral ligaments. Intact articular cartilage. No marrow signal abnormality.