Silicosis chest x ray

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Aparna Vuppala, M.B.B.S. [2]


  • A chest radiograph is obtained in virtually all patients undergoing evaluation for silicosis. It will confirm the presence of nodules in the lungs, especially in the upper lobes.

Chest X Ray

  • These features may progress from a pattern of lower zone opacities to large masses of coalesced parenchymal tissue in the mid and lower zones, which are typically bilateral but not always symmetrical [1].
  • The typical chest radiograph finding in chronic simple silicosis is the presence of many small round opacities of
  • Less than 10 mm in diameter,
  • Distributed predominantly in the upper lung zones.
  • Progressive massive fibrosis also known as conglomerate silicosis occurs when these small opacities gradually enlarge and coalesce to form larger opacities

X Ray of the lung of a patient with silicosis


  1. 1.0 1.1 Duchange L, Brichet A, Lamblin C, Tillie I, Tonnel AB, Wallaert B (1998). "[Acute silicosis. Clinical, radiologic, functional, and cytologic characteristics of the broncho-alveolar fluids. Observations of 6 cases]". Rev Mal Respir. 15 (4): 527–34. PMID 9805764.
  2. Dee P, Suratt P, Winn W (1978). "The radiographic findings in acute silicosis". Radiology. 126 (2): 359–63. doi:10.1148/126.2.359. PMID 622482.
  3. Gera K, Pilaniya V, Shah A (2014). "Silicosis: progressive massive fibrosis with eggshell calcification". BMJ Case Rep. 2014. doi:10.1136/bcr-2014-206376. PMID 25260430.

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