This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': '8 years. old child presents with lethargy multiple epiphyseal breaks, wormian bones with growth retardation and mental retardation Diagnosis is – \nSelect and explain. \nA. Rickets, B. Hypothyroidism, C. Scurvy, D. Hypoparathyroidism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Multiple epiphyseal breaks, wormian bones with lethargy, growth retardation and mental retardation suggest the diagnosis of hypothyroidism.\n\nX-ray findings of hypothyroidism \n\nDelayed appearance of epiphysis\nMultiple foci of ossification → Epiphyseal dysgenesis\nEpiphyseal breaking of 12th thoracic and 1st or 2nd lumbar vertebrae.\n\nSkull →\xa0\n\nLarge fontanelle\nWide sutures\nWormian bones\nEnlarged & rounded sella turcica\n\n\nDelayed dentition', 'role': 'assistant'}]