WASHOUT

• Decreasing signal intensity after peak enhancement is reached 
• < 10% of the initial enhancement
• Indicates a suspicious finding
• Seen with cancers and some benign findings as well i.e., lymph nodes and fat necrosis

Related Radiology Article: Macura KJ, Ouwerkerk R, Jacobs MA, Bluemke DA. Patterns of enhancement on breast MR images: interpretation and imaging pitfalls. Radiographics. 2006 Nov;26(6):1719-34.