Ununited humeral medial epicondyle in a dog

A Labrador crossbreed female dog was presented for a right forelimb lamenes s of 4.5 years' duration. The severity of the symptoms had suddenly increas ed 8 months earlier, after a trauma. Surgical exploration did not reveal ca lcification either in the joint capsule or in the flexor tendons. The fragm ent was intraarticular. No evidence of bone repair was noticed at surgery w hich confirmed imaging findings. The histologic findings were very much lik e those observed with chronic fragmented coronoid process. Finally, the lam eness, although suddenly exacerbated by a trauma, was already present. All these facts led to a final diagnosis of a true "ununited medial humeral epi condyle", a term introduced to describe the lack of fusion of the caudal pa rt of the humeral medial epicondyle.