[Use of clinical ultrasound in primary care: Shoulder pain]

Shoulder pain is one of the most common conditions in primary care, especially in elderly patients. Ultrasound stands out as an effective and cost-efficient tool for assessing these injuries, allowing real-time dynamic visualization of the affected anatomical structures. There is clear evidence that ultrasound is an effective diagnostic tool in the hands of a properly trained family physician. The tendons of the rotator cuff, especially the supraspinatus, are the most commonly affected. Ultrasound is crucial in detecting its pathology. Generally, the age and degenerative process itself stand out as the most influential factors in the pathogenesis. This review provides an overview of shoulder ultrasound anatomy, its exploration methodology, and the diagnosis of various injuries and pathologies.