Morel-Lavallée Lesion: Presenting Etiology of Chronic Myelogenous Leukemia in an Adolescent Athlete

Case: A 16-year-old boy presented with a concealed degloving lesion of the knee, a Morel-Lavallee lesion, 3 weeks after an injury to the right knee while playing basketball. An incidental hematologic finding led to the additional diagnosis of chronic myelogenous leukemia. Conclusion: Morel-Lavallee lesions often can be overlooked and appear to be subcutaneous hematomas. This case was complicated further by a leukemic condition that was likely the causative mechanism for the recalcitrant nature of the lesion in this athlete.