TABLE 2.

Adrenal Imaging and Laboratory Study Findings^*

Patient	Adrenal Imaging	Plasma Corticotropin	Serum Cortisol	Urinary Free Cortisol	Serum Cortisol Circadian Rhythm	High-Dose Dexamethasone Sppression Test
1	MRI: bilateral nodular enlargement	↓	↑	↑	NA	NA
2	CT: R adrenal 15 × 9 mm; L gland not seen	↓	↑	NA	Absent	NA
3†	CT and MRI: asymmetrical bilateral enlargement, L>R	↓	↑	↑	Present‡	Cortisol not suppressed
4	Angiogram: L vascular mass	NA	Normal	NA	NA	Cortisol not suppressed
5	NA	NA	↑	↑	NA	Cortisol not suppressed
6	Scintigram: marked uptake bilaterally, L>R	↓	NA	↑	Absent	NA
7	CT: bilateral enlargement	↑	↑	NA	NA	Cortisol not suppressed
8	NA	↓	↑	Absent	Cortisol not suppressed
9	US and MRI: R, multinodular enlargment; L, normal	↓	↑	NA	Absent	Cortisol not suppressed
10	Aortogram: no adrenal enlargement	↓	↑	↑	NA	Cortisol not suppressed

^*Patients 1 through 10 had Cushing syndrome and McCune-Albright syndrome. Patient 10 had Cushing syndrome, but not McCune-Albright syndrome.

^†Urinary aldosterone secretion was normal.

^‡Following unilateral adrenalectomy.

↓ indicates decreased or undetectable; ↑, increased; CT, computed tomography; L, left; MRI, magnetic resonance imaging; NA, not available; NMR, nuclear magnetic resonance; R, right; US, ultrasonography.