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Old 02-08-2012
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Question Jaw Mass!

An 8-year-old white boy presents to the pediatrician with a nontender mass on his right lower jaw. His mother had first noticed the lump a few months earlier, and it had slowly increased in size during this time. The patient also complained of some minor “bone pain,” which his mother attributed to a recent growth spurt. On examination, the patient’s vital signs were as follows: T 37.1°C, BP 110/68 mm Hg, pulse 72 beats per minute, and RR 16. There was a firm, nontender, smooth 5- × 4-cm mass on the left mandible but there was no lymphadenopathy or thyromegaly appreciated. The rest of the boy’s physical exam was normal. Initial laboratory testing revealed serum calcium of 12.46 mg/dL and a parathyroid hormone (PTH) level of 124 pg/dL. Based on these findings, which of the following is the most likely diagnosis?

A. Brown tumor
B. Burkitt’s lymphoma
C. Giant cell granuloma
D. Salivary gland inclusion
E. Traumatic bone cyst
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Old 02-08-2012
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A. brown tumor!
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Old 02-08-2012
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A. Brown tumor
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Old 02-10-2012
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brown tumor
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Oncology-, Step-2-Questions, Surgery-

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