This is heterotopic ossification in the muscles that sometimes occurs after an injury. This condition particularly occurs after dislocation of the elbow or a blow to the brachialis, deltoid or quadriceps.
This condition is thought to be due to muscle damage. However it also occurs without a local injury in unconscious or paraplegic patients.
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.