This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection of Bones & Joints, Subject name: Orthopaedics
Caries sicca is seen in - 
Select and explain. 
A. Hip, B. Shoulder, C. Knee, D. None of the above
B: Shoulder
Answer: B: Shoulder 
Explanation: Ans. is 'b' i.e., Shoulder o Shoulder joint tuberculosis, at times, may not produce any pus etc., and hence is called "caries sicca' and should always be considered in differential diagnosis of much commoner shoulder problem - 'Frozen shoulder'.