Extensor Hallucis Longus Tendonitis: A Rare Cause of Dorsal Midfoot Pain

Although disorders of tendon are quite common, acute extensor hallucis longus (EHL) tendonitis is a very rare occurrence. Repeated friction across the top of the foot or excessive pressure from an ill-fitting shoe is among most common risk factors. We report a 59-year-old lady with acute EHL tendonitis where musculoskeletal ultrasound appears to be an effective choice for both diagnosis and for guiding corticosteroid injection into tendon sheath.