Achilles peritendinosis: an unusual case due to frostbite in an elite athlete.

Achilles peritendinosis is common in running and jumping sports and can present with or without Achilles tendinosis itself. Several authors describe this condition as associated with over-use syndromes. This article describes an Achilles peritendinosis subsequent to frostbite in an elite runner who eventually underwent surgical treatment and was able to resume running 3 weeks postoperatively.