Ewing's sarcoma in a young man mimicking lateral elbow pain: A case report with 2 years follow-up.

Background And Purpose: Lateral elbow pain represents a common musculoskeletal disorder, mostly non-specific and benign. In rare cases, it can be the first symptom of a severe disease such as Ewing's sarcoma (ES). ES is the second most common primary malignant bone tumor in the young population, with a high probability of an unfavourable prognosis.