Answer: Crural deep vein thrombosis
MR images showed perivascular edema, perifascial edema and the deep crural venous filling defects.
The term deep vein thrombosis is practically a synonym for clots occuring in the lower limbs.
1.Shulman RM, Buchan C, Bleakney RR, White LM. Low prevalence of unexpected popliteal DVT detected on routine MRI assessment of the knee. Clin Imaging. 2016; 40(1):79-85.