Elbow Joint Hamartoma Compressing the Ulnar Nerve: A Case Report

Hamartomas are disorganised clusters of tissue that, although typically benign, can form and grow within the body's original structures.They can develop in various regions of the body; however, reports of hamartomas occurring in joints are relatively rare.This case report describes a 40-year male patient with a hamartoma in his elbow joint, leading to ulnar nerve compression and various complications.The mixed high and low densities observed on the x-ray, along with the mixed high and low signals on the MRI, strongly suggested a hamartoma.Surgical removal was performed, and the diagnosis was confirmed through pathological examination.A two-year follow-up showed no recurrence of symptoms.Hamartomas occurring in joints are rare, and they are even more uncommon for complications such as nerve compression to arise, as seen in this case.Imaging and surgical removal played crucial roles in the diagnosis and treatment of this condition.