ILO description of radiographic features of pneumoconioses A

Synopsis of parameters and additional symbols that are noted and graded on the International Labour Organization (ILO) pneumoconiosis form.

R: regular; I: irregular; p, q, r, s, t, u: these designations refer to the size and shape of nodules; qq: all nodules are described by q (small, rounded nodules with diameter 1.5 up to about 3 mm); tt: all nodules are described by t (irregular nodules with diameter 1.5 up to about 3 mm); qt: mix of q and t with q predominating; tq: mix of t and q nodules with t predominating; RUZ: right upper lung zone size.

Reproduced with permission from: Guidelines for the use of the ILO International Classification of Radiographs of Pneumoconioses: ILO Standard Digital Images (ILO 2011-D) in DICOM Format. Copyright © 2011 International Labour Organization. Available at: http://www.ilo.org/safework/info/publications/WCMS_168337/lang--en/index.htm.

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ILO description of radiographic features of pneumoconioses A