Lung-RADS v2022 (Screening LDCT)
Lung-RADS v2022ACR Lung-RADS v2022 categories (0, 1, 2, 3, 4A, 4B) for lung cancer screening LDCT, covering solid, part-solid, and ground-glass nodules as well as juxtapleural nodules, airway nodules, and atypical pulmonary cysts, with size, growth, and stepped-management rules.
Also searched as: lung cancer screening · nodule · airway · juxtapleural · cyst · ground-glass · lung screening · cancer
Information
Incomplete input
- Please provide: examination status (priors available, evaluability, inflammatory findings).
How this tool works
Lung-RADS v2022 classifies the most suspicious finding on a screening LDCT. Mean diameter (average of long and short axes) and growth (an increase over 1.5 mm within 12 months) drive the category, with lower thresholds for new nodules. Solid or part-solid nodules growing slowly over multiple examinations without meeting the 1.5 mm criterion are classified 4B. Smooth oval, lentiform, or triangular juxtapleural nodules under 10 mm are category 2; subsegmental airway nodules are category 2, while segmental or more proximal airway nodules are 4A at baseline and 4B when persistent or growing. Thin-walled unilocular cysts are benign and uncategorized; thick-walled or multilocular cysts are categorized by wall, locularity, and growth. Category 3 or 4 nodules with additional suspicious features are upgraded to 4X, and stable category 3/4A nodules are stepped down at follow-up.
References
- ACR — Lung CT Screening Reporting and Data System (Lung-RADS)
- Updates in Lung-RADS v2022 (NCBI Bookshelf, Table 11.2)
- Radiopaedia — Lung-RADS
Implemented from the cited published sources. Educational use only; confirm against current guidelines before clinical use.
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