Mild distension synovitis olecranic recess elbow - severe hemophilia A

This case serves as a normal control reference for the ultrasound atlas, documenting typical anterior elbow anatomy in a healthy 46-year-old female. 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 ideal baseline comparison for pathological cases. This subject represents an optimal control given the preservation of joint health despite age and regular upper extremity use in daily activities. The case emphasizes the importance of establishing age-appropriate and sex-specific normal reference values, as subtle differences exist between male and female anatomy (carrying angle, bone dimensions) and between age groups. Minor physiological variations related to aging (very subtle cartilage changes, minimal 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 elbow is commonly affected in hemophilia as a target joint, making normal reference cases essential for educational purposes. The documentation serves to train clinicians in identifying normal ultrasound anatomy before recognizing pathological deviations, establishing the baseline from which disease progression can be measured.