• Lynn T Tanoue, Polly Sather, Isabel Cortopassi, Demetrius Dicks, Anne Curtis, Gaetane Michaud, Anna Bader, Christopher Gange, Frank Detterbeck, and Jonathan Killam.
• Yale School of Medicine Department of Internal Medicine, New Haven, CT. Electronic address: lynn.tanoue@yale.edu.
• Chest. 2022 Jun 1; 161 (6): 1697-1706.

AbstractLung cancer screening is slowly but steadily entering the realm of preventive health maintenance. Standardization of reporting of positive findings identified on screening low-dose CT (LDCT) scans, specifically lung nodules, is a key element of high-quality lung cancer screening. The American College of Radiology developed the Lung CT Screening Reporting and Data System (Lung-RADS) system for this purpose. In addition to detailed categorization of lung nodules, Lung-RADS identifies category S for other incidental findings identified on screening LDCT scans. In contrast to the highly structured reporting for nodules, category S findings are reported at the discretion of individual readers, with the potential for high variability of reporting. Incidental findings on lung cancer screening studies are common, may trigger unwarranted evaluation with potential harm and cost, and may precipitate patient distress. In response to these concerns, our multidisciplinary lung cancer screening program developed a structured system for standardized reporting of category S findings based on recommendations of the American College of Radiology and relevant specialty societies.Copyright © 2022 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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