PURPOSE: The accessory bones around the elbow are very rare variant structures, present in approximately 0.7% of cases. They can cause diagnostic problems and can be mistaken for pathological structures, especially when pain and limitation of elbow movements are present and a trauma can be traced in the patient's history. They are of different nature, either presenting within muscle tendons as sesamoids (brachialis and triceps brachii muscles) or presenting intra-articularly probably as separated or accessory ossification centres. The least common is the os supratrochleare anterius. METHODS: We present a case of a young male, featuring chronic blocking and 20° limited flexion of his right elbow, which bothered him during his occupation as a locksmith. In history, he suffered minor trauma to the elbow 20 years ago. X-ray and CT showed a large ossicle in the coronoid fossa of the humerus. RESULTS: The ossicle was surgically extracted in small pieces. The patient left satisfied with no mention of complaints. CONCLUSION: The os supratrochleare anterius is a very rare accessory bone of the elbow, located in the coronoid fossa of the humerus which can mimic many pathological states, and limit movements and causing pain around the elbow.
- MeSH
- Anatomic Variation MeSH
- Adult MeSH
- Humerus abnormalities diagnostic imaging MeSH
- Humans MeSH
- Elbow Joint * MeSH
- Tomography, X-Ray Computed MeSH
- Check Tag
- Adult MeSH
- Humans MeSH
- Male MeSH
- Publication type
- Journal Article MeSH
- Case Reports MeSH
- Review MeSH
- MeSH
- Anthropometry methods instrumentation MeSH
- Adult MeSH
- Mountaineering * injuries MeSH
- Humerus abnormalities injuries MeSH
- Incidence MeSH
- Kinesiology, Applied methods utilization MeSH
- Muscle, Skeletal abnormalities injuries MeSH
- Humans MeSH
- Elbow Joint * MeSH
- Adolescent MeSH
- Young Adult MeSH
- Elbow Injuries MeSH
- Forearm Injuries MeSH
- Tendon Injuries MeSH
- Sports Medicine MeSH
- Tennis Elbow * pathology MeSH
- Tendon Entrapment MeSH
- Check Tag
- Adult MeSH
- Humans MeSH
- Adolescent MeSH
- Young Adult MeSH
- Male MeSH
- Female MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
- MeSH
- Child MeSH
- Adult MeSH
- Genes, Recessive MeSH
- Humerus abnormalities MeSH
- Humans MeSH
- Intellectual Disability genetics MeSH
- Dwarfism MeSH
- Infant, Newborn MeSH
- Consanguinity MeSH
- Cheek abnormalities MeSH
- Bone Diseases, Developmental genetics pathology MeSH
- Check Tag
- Child MeSH
- Adult MeSH
- Humans MeSH
- Male MeSH
- Infant, Newborn MeSH
- Female MeSH
- Publication type
- Case Reports MeSH
- MeSH
- Child MeSH
- Femur abnormalities MeSH
- Humerus abnormalities MeSH
- Humans MeSH
- Dwarfism MeSH
- Osteochondrodysplasias MeSH
- Tibia abnormalities MeSH
- Check Tag
- Child MeSH
- Humans MeSH
- Female MeSH
- Publication type
- Case Reports MeSH
