No snapping phenomena or fluid assortment is visible in the course of dynamic assessment. Take note which the subscapularis muscle belly - visible at the end of exterior rotation - should not be misinterpreted being an anechoic pathology. This sequence in AJPMR presents concise but comprehensive academic video clips on https://www.whofish.org/Default.aspx?tabid=45&modid=379&action=detail&itemid=293370&rCode=33