Imaging

Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology.

The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend. Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology. The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend.

Rick Robbins, M.D. Rick Robbins, M.D.

Medical Image of the Week: Asbestosis

Figure 1. Thoracic CT scan in soft tissue windows showing pleural plaques (arrows).

 

Figure 2. Thoracic CT scan in soft tissue windows showing subpleural curvilinear opacities (arrows).

 

Figure 3. Panel A: ground glass opacity (arrow). Panel B: parenchymal band (arrow).

A 76-year-old man with a past medical history of diabetes mellitus, hypertension, and an unspecified industrial-related asbestos exposure presented to the hospital after a syncopal episode and a ground level fall. A computed tomography (CT) of the chest was performed on admission which revealed several abnormalities including multiple bilateral calcified pleural plaques, pleural thickening, peripheral groundglass opacities (GGO) in the nondependent portion of the lungs and subpleural reticular and band like opacities. The patient unfortunately developed alcohol withdrawal and aspiration pneumonia requiring prolonged mechanical ventilation and was unable to provide additional details regarding his lung disease.

Asbestos is a naturally occurring mineral that historically was praised for its versatility. Its properties including heat and electrical resistance, tensile strength, and insulating capabilities made it a common component in materials used in both commercial and domestic settings.  Exposure to asbestos is linked to numerous respiratory diseases, including pleural and parenchymal disease, both malignant and nonmalignant. Pleural plaques are the most common manifestation of asbestos exposure (1,2). These are distinct areas of fibrosis that usually arise from the parietal pleura. Figure 1 shows bilateral pleural plaques located over the lateral and posterior chest walls as well as along the diaphragms, which is essentially pathognomonic for this disease. Asbestosis refers to lung fibrosis caused by asbestos dusts. Regional involvement of the lung parenchyma may be more pronounced in the subpleural and basilar locations.  An early finding of asbestosis is subpleural curvilinear opacities which are felt to represent peribronchial fibrosis (Figure 2). Additional features of asbestosis include ground glass opacities in the nondependent regions (Figure 3A), bilateral parenchymal bands (Figure  3B) and small nodular opacities, particularly suggestive when present with coexistent pleural disease. Honeycombing is a finding seen in more advanced disease.

Christopher Strawter MD1, Veronica Arteaga MD2, Jarrod Mosier MD1,3

1Pulmonary, Allergy, Critical Care, & Sleep Medicine; 2Radiology; 3Emergency Medicine

University of Arizona

Tucson, Arizona

References

  1. Roach HD, Davies GJ, Attanoos R, Crane M, Adams H, Phillips S. Asbestos: when the dust settles an imaging review of asbestos-related disease. Radiographics. 2002;22(Spec No):S167–84. [CrossRef] [PubMed]
  2. Peacock C, Copley SJ, Hansell DM. Asbestos-related benign pleural disease. Clin Radiol. 2000;55:422-32. [CrossRef] [PubMed]

Reference as: Strawter C, Arteaga V, Mosier J. Medical image of the week: asbestosis. Southwest J Pulm Crit Care. 2014;9(6):309-10. doi: http://dx.doi.org/10.13175/swjpcc156-14 PDF

Read More