This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bony dysplasia and soft tissue affection, Subject name: Orthopaedics
Causes of painful arc syndrome is/ are - 
Select and explain. 
A. Supraspinatus tendinitis, B. Subacromial bursitis, C. Fracture of greater tuberosity, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Painful arc syndrome is characterised by pain in the shoulder and upper arm during the mid range of gleno-humeral abduction. Causes are *supraspinatus tendinitis *subacromial bursitis *fracture of greater tuberosity *calcification of supraspinatus tendon *minor tears of the supraspinatus tendon In all these conditions the space between the upper end of the humerus and the acromion gets compromised, so that during mid abduction the tendon of rotator cuff gets nipped between the greater tuberosity and acromion. Reference-Essential ohopaedics- Maheshwari -5th edn-pg no 304