Answer:USMLE step 2 Mcq 119:A 45 year old man is referred to a surgeon by his physician because of a swelling in his jaw





Correct Answer: E

Brown's tumours are found in Primary hyperparathyroidism . Brown tumours (due to increased osteoclastic activity) are particularly common in the jaw and mandible Primary hyperparathyroidism is usually detected by an elevated serum calcium during routine biochemical screening.


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