Revisiting the metacarpophalangeal joint: comparison of ultrasound tissue patterns with its anatomical, histological, and immunohistochemical features - Naredo E; Guillén-Astete C; Olivas-Vergara O; Largo R; Mérida-Velasco JR; Barrio-Asensio MDC; Vazquez-Carballo C; Herrero-Beaumont G; Uson J; Murillo-González J (Ultraschall In Der Medizin, 2025)