Incidental Findings

An incidental finding refers to a lesion or abnormality discovered during imaging tests (such as CT or MRI) performed for an unrelated reason. The rise in use of cross-sectional imaging over recent decades has led to a significant increase in incidental findings. While many incidental findings are unlikely to pose risks to one’s health, detecting important conditions early, when patients are asymptomatic, may present opportunities for better patient outcomes and care. Furthermore, when guidance is not available on effective clinical management, there is also potential for over-testing and over-treatment of incidental findings associated with very low risk.

To address the need for guidance on the management of incidental findings, ACR has implemented an evidence-based process for developing algorithm-based recommendations. The process, outlined in Developing Algorithm-Based Recommendations in the American College of Radiology: Defining a New Process, ensures transparency and multidisciplinary input.