Case Report
Ectopic Cushing’s Syndrome Unveiling a Metastatic Parotid Carcinoma
Table 2
Low- and high-dose dexamethasone suppression tests.
| | Low-dose dexamethasone test | High-dose dexamethasone test | End | Reference Values | | Baseline | Day 1 | Day 2 | Day 3 | Day 4 | Day 5 |
| | Cortisol 8 a.m. | 38.3 | 44.7 | 44.6 | 36.9 | 32.2 | 32.0 | 6.2–19.4 μg/dL | | Cortisol 16 p.m. | 38.1 | 47.5 | 38.2 | 36.5 | 28.7 | — | | | ACTH 8 a.m. | 209.2 | 268.3 | 247.9 | 228.1 | 197.3 | 215.9 | <63.3 ng/L | | ACTH 16 p.m. | 198.8 | 242.1 | 181.2 | 201.7 | 250.9 | — | | | 24-h UFC | 6900.3 | 3425.4 | 4148.0 | 3898.0 | 3097.7 | — | 36.0–137.0 μg/24h |
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ACTH: adrenocorticotropic hormone; 24 h-UFC: 24 h-urinary free cortisol.
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