Table.
Laboratory Investigations of the Patient
| Laboratory investigations | Results at the time of the initial presentation of adrenal mass | Results at the time of diagnosis of hepatic metastases | Reference range |
|---|---|---|---|
| Serum potassium | 2.3 mmol/L | 2.3 mmol/L | 3.5-5.1 mmol/L |
| Thyroid-stimulating hormone | 0.45 mcIU/mL | 0.397 mcIU/mL | 0.4-4.3 mcIU/mL |
| Free thyroxine | 1.29 ng/dL | 0.8 ng/dL | 0.6-1.6 ng/dL |
| Hemoglobin A1C | 6.2% (44 mmol/mol) | 8.5% (69 mmol/mol) | 4.0%-6.0% (20-42 mmol/mol) |
| 24-hour urine cortisol | 285 mcg | 3700.2 mcg | <45 ug/d |
| Salivary cortisol | 0.383 mcg/dL | 0.974 mcg/dL | <0.181 ug/dL |
| 8 am serum cortisol after 1 mg of dexamethasone administered overnight | 16.9 mcg/dL | 37.8 mcg/dL | <1.8 mcg/dL; excludes Cushing syndrome |
| 8 am serum cortisol after 8 mg of dexamethasone administered overnight | … | 41.6 mcg/dL | <1.8 mcg/dL; excludes Cushing syndrome |
| Adrenocorticotropic hormone | <5 | 27 ng/mL in LDDST and 19 ng/mL in HDDST | <46 pg/mL |
| Dehydroepiandrosterone sulfate | 51 mcg/dL | 29 mcg/dL | Female premenopausal, 35-430 mcg/dL Postmenopausal, 10-240 mcg/dL |
| Estradiol | … | <20 ng/mL | Midfollicular, 27-123 pg/mL Periovulatory, 96-436 pg/mL Midluteal, 49-294 pg/mL Postmenopausal, 0-40 pg/mL |
| Androstenedione | 4.3 | 0.348 ng/mL | 0.26-2.14 ng/mL |
| Total testosterone | 8.2 ng/dL | 2 ng/dL | Premenopausal, 9-55 ng/dL Postmenopausal, 5-32 ng/dL |
| 17-hydroxyprogesterone | … | 98.6 ng/dL | <206 ng/dL |
| 11-deoxy cortisol | … | 725 ng/dL | <32 ng/dL |
| Chromogranin A | … | 130 ng/mL | <160 ng/mL |
Abbreviations: HDDST: high-dose 8 mg dexamethasone suppression test; LDDST: low-dose 1 mg dexamethasone suppression test.