: A 50-year-old woman presents with an anterior neck enlargement. She reports in
ID: 11444 • Letter: #
Question
: A 50-year-old woman presents with an anterior neck enlargement. She reports increased appetite, weight loss, and frequent bowel movements over the past month. She is 5'8" tall & weighs 150 lb. Resting heart rate is 84 BPM, & BP is 112/78 mm Hg. She seems to “stare,” & her eyelids close incompletely. Palpation reveals that the thyroid gland is enlarged. It weighs an estimated 40g (normal = 15-20g).The test results for this patient were as follows (S = measured in serum):
Patient's value Normal range
Calcium, total (S) 10.2 mg/dl 8.4 - 10.2
Phosphorus 4.6 mg/dl 2.7 - 4.5
Alkaline phosphatase (S) 130 U/L 49 - 120
T4, Total (S) 12.2 ug/dl 5 - 11.5
T3, Total (S) 311 ng/dl 100 - 215
TSH (S) <0.1 uU/ml 0.7 -7.0
Free thyroxine index (FTI) 14.6 6 - 11.5
Uptake of radioactive iodine into the thyroid gland showed 68% uptake at 6 hr with radioactive iodine (normal is 5% - 28% uptake).
Serum was obtained for anti-thyroid antibody tests:
Patient Normal
Antithyroglobulin Ab. neg. neg.
Antimicrosomal Ab. pos. neg.
What is your diagnosis? Provide evidence (signs and symptoms) to support your answer completely.
How should this patient be treated?