What CT Hounsfield value distinguishes benign adrenal adenoma?

Unenhanced CT attenuation ≤10 HU is highly specific (98%) for a benign lipid-rich adrenal adenoma, not requiring further CT or MRI characterization. Values >10 HU require washout protocol CT.

At what size should adrenal incidentaloma be resected?

Most guidelines recommend adrenalectomy for adrenal masses >4 cm without clear benign imaging features, as malignancy risk rises significantly above this threshold. Masses 3-4 cm require individualized assessment.

Adrenal Incidentaloma Hounsfield Malignancy Risk

Assess adrenal incidentaloma malignancy risk using CT Hounsfield Units (HU), size, and imaging characteristics to determine whether surgical resection or follow-up imaging is indicated.

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Adrenal Incidentaloma Hounsfield Malignancy Risk

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Frequently Asked Questions

What CT Hounsfield value distinguishes benign adrenal adenoma?

At what size should adrenal incidentaloma be resected?