Due to their asymptomatic nature, most reported cases of adrenal adenomas have been discerned fortuitously through autopsy, or during medical imaging, particularly CT scan (computed tomography) and magnetic resonance imaging. Hence, they have earned the title incidentaloma referring to small adenoma discovered incidentally. Though<unk> s are considered challenging to differentiate from the normal adrenal cortex, they appear as well-circumscribed lesions once isolated. Imaging Diagnostics * Computed Tomography (CT scan) * Magnetic Resonance Imaging (MRI) Adrenal adenoma2 T1FS.jpg Laboratory Tests * CRH Stimulation Test * High-dose-dexamethasone suppression test Gross Description * Well-circumscribed lesion * Size ≤ 5 cm * Weight ≤ 50 grams * often appear as golden-yellow color mass (may have focal dark regions corresponding to hemorrhage, lipid-depletion, and increased lipofuscin)
Adrenocortical adenoma
Nephrogenic adenoma
Pituitary adenoma
Primary pigmented nodular adrenocortical disease
Metanephric adenoma
Adrenocortical carcinoma
Juxtaglomerular cell tumor
Hürthle cell adenoma