Myositis Ossificans Traumatica of the Head and Neck in a Child.

Myositis ossificans traumatica (MOT) is a focal reactive ossification of muscle that typically occurs secondary to a single acute high-impact trauma or multiple chronic low-grade traumas. The disease is often limited to a single muscle and can occur throughout the body. Ossification of the muscles in the head and neck region is extremely rare but can occur after falls, motor vehicle accidents, blunt force trauma, or surgical procedures such as extractions and local infiltration. The purpose of this paper is to present the case of a seven-year-old girl with trismus and calcification within her medial pterygoid muscle. To our knowledge, this is the youngest known reported case of MOT of the head and neck region.