Lung Imaging Reporting and Data System

**Semantic type:** Intellectual Product

**Definition:** A standardized clinical classification system created by the American College of Radiology that categorizes pulmonary nodules found on low-dose CT lung cancer screening based on size, density, morphologic features, and growth over time to determine malignancy risk and guide management.

**Synonyms:** - Lung-RADS - Lung-RADS classification system