Myositis ossificans is usually the result of direct injury to a muscle and
is a self-limiting disease. It may present as a soft-tissue mass with a bro
ad differential diagnosis, including highly malignant tumours, such as soft
-tissue sarcomas. Many theories can be found concerning the aetiology of my
ositis ossificans, but minor or major traumas are considered to be the most
common cause. A unique case of myositis ossificans of the neck in a 17-yea
r-old professional, female, ground gymnast, who presented initially with a
soft-tissue tumour, was treated successfully. The main differential diagnos
is is presented along with typical radiographic features on conventional ra
diography, computerised tomography and magnetic resonance imaging, and typi
cal pathological appearance, such as the pathognomonic "zoning phenomenon".
Myositis ossificans should be added to the differential diagnosis of every
young patient who engages in sport and presents with a soft-tissue mass. C
areful padding of the area and teaching the rolling technique to avoid repe
ated injuries to the neck can prevent recurrence.