Journal of the New Zealand Medical Association, 09-May-2008, Vol 121 No 1273
Silicosis due to denim sandblasting: multidetector CT findings
Metin Akgun, Mecit Kantarci, Omer Araz, Elif Yilmazel Ucar, Arzu Mirici
A 17-year-old man presented to hospital with dry cough and pleuritic chest pain. For approximately 2 years he had worked in a textile factory as a denim sandblaster using silica-containing sand to abrade denim material. He was diagnosed with accelerated silicosis.
In such cases, chest X-rays (Figure 1a) and HRCT images are widely used. We also used multidetector CT (MDCT) in this case to better reveal the nodules and fibrotic lesions and their association with bronchovascular structures and pleural surfaces (Figure 1b).
Although axial MDCT images were comparable with HRCT images, the best image achieved with MDCT was a 3D volume-rendering image, in which pleural tractions and abnormal surface of pleura was shown very well as well as distortion of parenchyma (Figures 2a and 2b).
Figure 1(a) Chest X-ray and (b) a MDCT coronal MIP (maximum intensity projection) image of the case show bilateral diffuse reticulonodular densities and nodules, fibrotic lesions, and their association with pleura and vascular structure, respectively.
Figure 2. Pleural images that are achieved after reconstruction of MDCT raw images belonging to (a) an elderly female (60 yrs) with pulmonary thromboembolism and (b) the young silicosis case (17 yrs). Note the differences (regularity/irregularity) of pleural surfaces. Pleural surface of the case with silicosis has a very irregular margin due to traction of parenchymal fibrosis.
Silicosis—a debilitating, sometimes fatal, yet preventable occupational lung disease—is caused by inhaling respirable crystalline silica dust. Although silicosis is a well-known disease, it continues to be reported in a new and sometimes unusual or unexpected occupation.
Recently denim sandblasting has been reported as a new cause of silicosis with fatal outcomes.1–3
As presented here, we conclude that MDCT may be more advantageous to characterise parenchymal abnormalities (especially on pleural surfaces) compared with previous techniques.
Author information: Metin Akgun1, Mecit Kantarci2, Omer Araz1,
Elif Yilmazel Ucar1, Arzu Mirici3
Correspondence: Dr Metin Akgun, Aziziye Arastirma Hastanesi, Gogus Hastaliklari Anabilim Dali, 25070 Erzurum, Turkey. Fax: +90 442 3166340; email: email@example.com
issue | Search journal |
Archived issues | Classifieds
| Hotline (free ads)
Subscribe | Contribute | Advertise | Contact Us | Copyright | Other Journals