You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which is not involved in Ankylosing spondylitis : and explain in detail?
Ans. is 'c' ie Wrist & elbow Ankylosing spondylitis also k/a Marie-Strumpell ds is a chronic ds characterized by progressive inflammatory stiffening of the joints with a predilection for the joints of axial skeleton. MC involved joint - Sacro iliac joint* , next is spine Also Remember Sex ratio : M>F (10:1)* Age gp : young (15-30 yr) X-ray appearance Bamboo spine* Squaring of vertebrae Ankylosing spondylitis is a very imp topic and a good look at it will definitely help you.