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Study Syllabus for Classification of Radiographs of Pneumoconioses						Print
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										Radiograph ClassificationSubset 1Section 2: Parenchymal Abnormalities (Continued)
Radiograph #11
**Radiograph #11** through **Radiograph #14** demonstrate large pneumoconiotic opacities. **Radiograph #11** is quality 2 due to mottle, and shows an **A** 12-mm opacity underlying the right third anterior rib. There is coalescence of small opacities **ax in the right upper lobe**. There are coexistent background small pneumoconiotic round opacities **r/q** involving all lung fields, profusion **2/2**. Other abnormalities include **ax**, and **hi**.
Radiograph #12
**Radiograph #12** demonstrates large opacities that when summed would be categorized as **B** since the sum of their longest dimensions exceeds 50 mm but the sum of their dimensions does not exceed the area of the right upper zone. For illustration purposes, if only one of these two were present, the individual classifications would be as follows: the large opacity underlying the right second anterior rib would be **A** and the opacity underlying the left first and second anterior ribs is about 50 mm in size or **A**. A poorly defined nodule seen through the heart in the left lower zone could be an additional large opacity. (For further review of this image, see **Radiograph #24**.)
Radiograph #13
**Radiograph #13** presents several large opacities whose dimensions when summed, exceed the area of the right upper zone and are therefore collectively classified C. The large opacities involve the middle and upper lung zones on the left and right. There are coexistent background small pneumoconiotic opacities q/q involving all lung zones, profusion 3/3. Other abnormalities include **bu, di, em, id, and ih**.
Radiograph #14
**Radiograph #14** demonstrates a B size opacity in the left upper lobe. Two additional opacities are seen in the RUZ between the second and third anterior ribs and the right infra hilar area overlying the distal end of the anterior right 4th rib. Since together they do not exceed the area of the right upper zone, they should be collectively reported as **large opacities, size B**.The symbol **ax** refers to an area of coalescence of small pneumoconiotic opacities (rounded or irregular) within which the margins of the individual opacities are still identifiable. A true **large opacity** such as the opacity seen in the left apex has a more homogeneous appearance.
The distinction between a large opacity and **ax** coalescent opacities will be further illustrated in Subset 4.
If no large opacities are present, check **O** in Section 2C, large opacities. If one or more large opacities are present, check the letter**A, B or C** that best represents the area they would collectively occupy if they were contiguous.RADIOGRAPHS #11 TO #14 (INTRO.)Page 8 of 8SECTION 3: PLEURAL ABNORMALITIES
							
					
							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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