An 18-year-old male college student complains of numerous episodes of headache, sweating, palpitations, and tachycardia lasting about 60 minutes each while in class. A visit to the student health...

An 18-year-old male college student complains of numerous episodes of headache, sweating, palpitations, and tachycardia lasting about 60 minutes each while in class. A visit to the student health center during one of these episodes reveals a BP of 200/120 mm Hg; 24-hour urinary catecholamine secretion is greater than 200 µg.The patient is tall and slender with exceptionally long fingers and toes. For which of the following conditions does this patient have the highest risk?

A. PUD

B. Hyperthyroidism

C. Osteoporosis

D. Galactorrhea

E. Thyroid carcinoma