This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Caries sicca are seen in TB of ? \nSelect and explain. \nA. Small bones of hand, B. Shoulder, C. Knee, D. Hip', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Shoulder Tuberculosis of the shoulder Rare constituting only 1 - 2% of skeletal tuberculosis. Seen in adults with high concomitant pulmonary tuberculosis. Painful limitations of abduction and external rotation occur early and there is marked wasting of supraspinatus, deltoid and other muscles. With disease progression there is marked atrophy and destruction of the upper end of humerus. And glenoid and the shouler undergoes fibrous ankylosis. The common variety is dry, atrophic form - caries sicca.", 'role': 'assistant'}]