This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
[{'content': 'A 40-year-old gymnastic man with right shoulder pain since 20 days. Arrow points to? \nSelect and explain. \nA. Calcific Biceps tendinitis, B. Coracoacromial ligament calcification, C. Avulsion fracture of greater tuberosity, D. supraspinatus tendon calcification', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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.', 'role': 'assistant'}]