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Study Syllabus for Classification of Radiographs of Pneumoconioses						Print
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										Radiograph ClassificationSubset 3Radiograph #28
Answer Key #28 (Updated 9/28/2023)
With a background of small pneumoconiotic opacities, the large opacity in the right upper/middle zone is consistent with a size A large opacity of pneumoconiosis (PMF, conglomerate mass). In addition to recording the opacity as consistent with PMF, if one is concerned that this might possibly represent a carcinoma, the reader should also record **ca** in 4B and the “Other Comments” Section 4D, as shown on the reporting form. (Note: we must CLARIFY THAT when a lesion is consistent with PMF, **ca** alone is not correct).  In Section 4B, **ax** and **di** were selected. Hilar adenopathy is also likely and designated by **hi**.
Radiograph #29
Answer Key #29
This is an example of image quality **2** since the left arm is superimposed over the left lateral chest wall which could be mistaken for pleural thickening. Mottle was also noted. This radiograph illustrates a combination of small rounded opacities, primarily **r** and secondarily, irregular opacities **t**. The profusion 2/2 represents a subjective average since the profusion of small opacities in the lower zones is less than their profusion in the middle and upper zones. In averaging profusion, the lower zones are excluded because there are two subcategories of profusion between them and the other involved zones. Note the poorly defined densities at the right fifth and seventh posterior ribs and at the left eighth posterior rib, reflecting callus formation at healed fracture sites. They should not be mistaken for large opacities and should be recorded in Section 4B as **fr**.
Radiograph #30
Answer Key #30
Several large opacities are present. Their areas when summed exceed the area of the right upper lung zone; therefore, they are recorded as size **C** in Section 2C. There are no pleural abnormalities. In Section 4B, **di, em, id, ih**, and **pb** were selected.RADIOGRAPHS #25, #26 AND #27Page 1 of 4RADIOGRAPHS #31 AND #32
							
					
							Last Reviewed:  April 26, 2023						Source: 	National Institute for Occupational Safety and Health
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        Syndicate homeStudy Syllabus for Classification of Radiographs of Pneumoconioses
Introductionplus icon
Preface
Appreciation to Contributors
Intent of the Self-study Syllbus
Getting Started
Clinical Overviewplus icon
Major Occupational Lung Diseasesplus icon
Pneumoconioses
Central Role of Diagnostic Imagingplus icon
Role of CT
Overview of Nonimaging Clinical Tools in Lung Disease Diagnosis
Appendix A
References
Pathology Overviewplus icon
Pulmonary Silicosis
Coal Workers’ Pneumoconiosis
Asbestos Pleuropulmonary Disease
Pathological-Clinical Correlations
References
Radiograph Classificationplus icon
SUBSET 1 – Radiograph Classification, #1 to #19plus icon
Introduction
Radiograph Identification
Section 1: Image Quality
Section 2: Parenchymal Abnormalities, #1 to #14
Section 3: Pleural Abnormalities, #15 to #19
Section 4: Any Other Abnormalities
Section 5
SUBSET 2 – Radiograph #20 to #27plus icon
Radiograph #20
Radiograph #21
Radiograph #22
Radiograph #23
Radiograph #24
Radiographs #25 to #27
SUBSET 3 – Radiograph #28 to #38plus icon
Radiographs #28 to #30
Radiographs #31 to #32
Radiographs #33 to #35
Radiographs #36 to #38
SUBSET 4 – Radiograph #39 to #46 (Small and Large Opacities)plus icon
Radiographs #39 to #40
Radiographs #41 to #42
Radiographs #43 to #44
Radiograph #45
Radiograph #46
SUBSET 5 – Classifications and Answer Keys, Radiographs #47 to #83
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