This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Orthopaedics
[{'content': "75 yrs female has chronic backache, x-ray spine is shown. What is the most likely diagnosis:- \nSelect and explain. \nA. Pott's spine, B. Osteoporosis, C. Spondylolisthesis, D. Spondylodiscitis", 'role': 'user'}, {'content': 'Answer: B \nExplanation: * Spondylodiscitis - Inflammation of disc along with paradiscal margin and shows slight narrowing the disc space at first in X-rays. It is a very painful condition. * Pott\'s spine - occurs in paradiscal area. X-ray shows narrowing of the disc space and erosion of adjacent veebral bodies. * Spondylolisthesis - Slipping of one veebra into other. Oblique X-ray view demonstrates "Scotty Dog Neck" which is pathognomonic Osteoporosis - Patient\'s age and the chronic condition points towards osteoporosis. The given X-ray shows Cod fish / fish mouth veebrae which is characteristic of osteoporosis.', 'role': 'assistant'}]