Adrenal Washout Calculator

Evaluate adrenal masses. Calculate absolute and relative washout based on Hounsfield Units (HU) from non-contrast, venous, and delayed CT scans.

Absolute Washout

71%

Relative Washout

50%

Likely Lipid-Poor Adenoma.

Interpretation Guidelines

I genuinely believe that diagnostic accuracy saves lives. When an adrenal mass is discovered, radiologists use "washout" calculations to determine if the mass is likely a benign adenoma or a more suspicious lesion.

Standard Criteria:

Absolute Washout > 60%: Highly suggestive of a benign adrenal adenoma.
Relative Washout > 40%: Suggestive of a benign adrenal adenoma.
Non-contrast HU < 10: Usually diagnostic of a lipid-rich adenoma (no washout needed).

Disclaimer: This tool is for educational and clinical reference only. Diagnosis should be made by a qualified radiologist or physician in the context of the full clinical picture.