This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
[{'content': 'Which of the following is the etiological agent for the given case below: \nSelect and explain. \nA. Congenital, B. Neurofibromatosis, C. Degenerative arthritic, D. Idiopathic', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (A) Congenital(Ref: Apley's System of orthopedics and Fracture 9th Ed; Page No- 465-66)Presence of a hemivertebra- Congenital Scoliosis.Neurofibromatosis: It is associated with scoliosis. The scoliotic curve is typically 'short and sharp and is associated with skin lesions.Idiopathic: It usually resolves spontaneously, measurement of the rib-vertebra angles at the curve apex in the early stages of the deformity is a good prognostic factor.Neuromuscular: The typically paralytic curve is long, convex towards the side with weaker muscles (spinal, abdominal, or intercostal), and at first is mobile. An X-ray obtained with traction would show the extent to which the deformity is correctable.", 'role': 'assistant'}]