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: Radiology
[{'content': 'The following radiographs are most likely associated with: \nSelect and explain. \nA. Hyperpituitarism, B. Hyperparathyroidism, C. Hypoparathyroidism, D. Hyperthyroidism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Radiological signs\nThere is a generalized osteopaenia (loss of bone density) within the jaws and a thinning of cortices. The normal trabecular pattern is altered with a fine granular appearance. The lamina dura of the teeth is lost either generally or locally. Localised bone lesions also occur within the jaws as the disease progresses.\nThese are referred to as “brown tumours”. They are often multiple.\nKey Concept', 'role': 'assistant'}]