07-04-2007, 08:00 PM
A 58-year-old man with a history of diabetes mellitus has noted the presence of bone pain, especially of his hands, for the past 6 months. On physical examination there is no swelling or redness of his hands, no joint deformity, but the range of motion is slightly decreased. Laboratory studies show sodium 139 mmol/L, potassium 4.0 mmol/L, chloride 98 mmol/L, C02 22 mmol/L, glucose 153 mg/dL, creatinine 7.8 mg/dL, calcium 7.8 mg/dL, phosphorus 5.7 mg/dL, total protein 6.2 g/dL, and albumin 4.0 g/dL. Which of the following conditions is this man most likely to have?
A Adrenal adenoma
B Medullary thyroid carcinoma
C Extra-adrenal pheochromocytoma
D Parathyroid hyperplasia
E Pituitary adenoma
A Adrenal adenoma
B Medullary thyroid carcinoma
C Extra-adrenal pheochromocytoma
D Parathyroid hyperplasia
E Pituitary adenoma