A 43-year-old prison guard man presented with right knee pain for 3 months following prolonged standing at work (Figs. 1, 2, 3 and 4).
(a) Lateral radiograph and (b) computed tomography of the right knee reconstructed in the sagittal plane
Magnetic resonance imaging. Axial T1-weighted imaging with fat saturation before (a) and after intravenous gadolinium injection (b)
(a) Axial diffusion-weighted imaging (DWI), (b) apparent diffusion coefficient (ADC) map of the right knee. (c) Axial color coded semi-quantitative map and (d) time-signal intensity curve (red curve is from the solid portion of the lesion and the yellow curve is from popliteal artery)
(a) Histopathological photomicrographs (hematoxylin and eosin staining) at 400 × power and (b) immunohistochemistry analysis for S100 protein at 100 × power
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Miguelote, P.M.L., Carneiro, L.H., Oliveira, M.B.d. et al. Test Yourself Question: Right knee pain following prolonged standing. Skeletal Radiol 50, 2549–2551 (2021). https://doi.org/10.1007/s00256-021-03838-0
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DOI: https://doi.org/10.1007/s00256-021-03838-0