This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal Radiology, Subject name: Radiology
[{'content': 'Shiny Corner Sign is seen in \nSelect and explain. \nA. Psoriatic Ahritis, B. Ankylosing Spondylitis, C. Rheumatoid Ahritis, D. Gouty Ahritis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *Shiny corner sign is a finding in ankylosing spondylitis, representing reactive sclerosis at the superior and inferior endplates of the veebral bodies. Eventually, the veebral bodies become squared in Ankylosing Spondylitis. *Note- Corner Sign Of Park is metaphyseal Clefts Seen In Scurvy', 'role': 'assistant'}]