| serum cortisol (9am) | 110 nmol/l (200–700) |
| serum testosterone | 1.9 nmol/l (9.0–35.0) |
| serum follicle-stimulating hormone | 1.2 U/l (1.0–7.0) |
| serum luteinising hormone | 0.3 U/l (1.0–10.0) |
| serum prolactin | 1,300 mU/l (<360) |
| serum thyroid-stimulating hormone | 6.8 mU/l (0.4–5.0) |
| serum free T4 | 8.4 pmol/l (10.0–22.0) |
| CT scan of head | 4 cm pituitary tumour abutting the optic chiasm |