Severe osteochondral damage anterior ankle transv scan - severe hemophilia A

This case serves as a normal control reference for the ultrasound database, documenting typical anterior ankle anatomy in a healthy 58-year-old male. All measured parameters fall within established normal ranges for age and sex. The complete absence of synovial proliferation, cartilage irregularities, bony changes, or inflammatory signs provides baseline comparison for pathological cases. This subject represents an ideal control given the preservation of joint health despite age and regular impact activities (running), demonstrating the ankle joint's resilience in the absence of underlying pathology or trauma. The case emphasizes the importance of establishing age-appropriate normal reference values, as subtle changes related to physiological aging (minimal cartilage thinning, slight joint space variation) must be distinguished from pathological alterations. This normal reference is particularly valuable for comparative studies in hemophilic arthropathy, where ultrasound assessment aims to detect early subclinical joint changes before clinical manifestations appear. The documentation serves educational purposes for trainees learning to identify normal ultrasound anatomy before recognizing pathological deviations.