Standard ILO chest radiograph of large "A" nodular opacities

This is a standard International Labour Organization (ILO) radiograph demonstrating a large nodular opacity designated category "A" for ≤50 mm.

Reproduced with permission from: Guidelines for the use of the ILO International Classification of Radiographs of Pneumoconioses (Revised edition 2011): ILO Standard Digital Images (ILO 2011-D) in DICOM Format. Copyright © 2011 International Labour Organization. Available at: https://www.ilo.org/publications/guidelines-use-ilo-international-classification-radiographs-pneumoconioses-0 (Accessed on April 30, 2024).

Graphic 91559 Version 2.0