Structural Adaptations and Asymptomatic Alterations in Athletes: MR imaging Findings and Clinical Relevance

MR imaging frequently reveals structural findings in asymptomatic athletes that may mimic injury, including tendinous, osseous, muscular, and chondral alterations, but often represent physiologic, load-induced adaptation rather than pathology. Distinguishing adaptive remodeling from early injury is essential to avoid overdiagnosis and unnecessary restriction from sport. This article reviews common MR imaging patterns of musculoskeletal adaptation, highlights sport-specific examples and proposes practical interpretative and reporting principles to support accurate diagnosis, effective communication with referring clinicians, and appropriate patient management.