Presentation
One-week history of left thoracic limb lameness.
Patient Data
Left elbow: There is a smoothly margined osseous body medial to the medial epicondyle of the humerus on the caudocranial projection. The fragment is also visible on the flexed lateral projection. There is a defect in the medial epicondyle at this site with irregular bone.There is irregular bone from the medial epicondyle on the flexed lateral projection.
Right elbow: There is a radiolucent region in the medial epicondyle, and the medullary bone in this region is sclerotic. There is irregular bone from the medial epicondyle on the flexed lateral projection.
Impression:
Left fragmented medial epicondyle. Right flexor enthesopathy and medial lucent lesion.
Case Discussion
Previously named ununited medial epicondyle, new terminology of flexor tendon enthesopathy has been proposed for this condition. However it may not be an umbrella term for all osseous changes in the medial epicondyle, and fragmented medial epicondyle seems to be a distinct lesion that can occur without flexor enthesiopathy.
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