<prompt> A 40-year-old gymnastic man with right shoulder pain since 20 days. Arrow points to?Calcific Biceps tendinitisCoracoacromial ligament calcificationAvulsion fracture of greater tuberositysupraspinatus tendon calcification  <response>: Ans. D. Supraspinatus tendon calcification.Supraspinatus tendon is the most common tendon in the body to calcify. It is typically seen superolateral to greater tuberosity as in this X-ray. Calcifying tendinitis is a common disorder of the rotator cuff.Coracoacromial ligament calcification is seen inferior to acromion process.The greater tuberosity is intact. 