Presentation
Posterior ankle pain.
Patient Data
Elongated posterolateral talar (stieda) process. No fracture, no other bony or articular abnormality.
Elongated lateral tubercle of the talus (Stieda process) as well as mild posterior lateral capsular thickening and synovitis with mild focal tenosynovitis involving the flexor hallucis longus.
The posterior talofibular ligament also appears mildly thickened with intermediate T1 and T2 signal intensity.
Focal marrow edema signal of the medial talar dome is seen with hypointense T1 and hyperintense T2 and STIR signal with likely small osteochondral lesion.
Intact collateral ligaments and tendo-achilles. No joint effusion.
Case Discussion
Posterior ankle impingement with elongated posterolateral talar Stieda process.