A 33-Year-Old Man with Gynaecomastia and Galactorrhea as the First Symptoms of Graves Hyperthyroidism

Table 1

Laboratory investigation.

Laboratory investigation	Result	Reference range
Free T4 (ng/mL)	3.26	0.70–1.48
TSH (mIU/L)	<0.01	0.35–4.94
Prolactin (μg/L)	10.54	3.46–19.40
Creatinine (mg/dL)	1	0.60–1.20
Anti-TSH receptor antibodies (IU/L)	27.98	0.00–1.75

Free T4: free thyroxine; TSH: thyroid-stimulating hormone.