"T1: low signal intensity"
"T2/STIR: intermediate signal intensity"
"IW/PDFS: intermediate signal intensity"
"T1 C+ (Gd): avid enhancement"
"Posteromedial ankle impingement usually occurs as a consequence of an acute traumatic injury. A typical injury mechanism is plantar flexion, inversion and internal rotation, which causes compression and injury of the posterior tibiotalar ligament and the posteromedial joint capsule 2. This typically leads to synovial thickening and synovitis, which then causes the symptoms and possibly further involvement of the adjacent flexor tendons e.g. the tibialis posterior tendon is involved in up to 40% of the cases 2,3."