Pulmonary baritosis (or simply known as Baritosis) is type of benign non-fibrotic pneumoconiosis 2 which can be precipitated by inhalation of Barium particles (usually Barium sulphate - BaSO4). Inhaled Barium particles can lie in the lungs for years without producing symptoms or causing impairment in lung function 3.
Baritosis is seen as extremely dense discrete shadows/nodules in a chest radiograph owing to the high radio-opacity of Barium 1,3.
For extremely dense nodules on plain film consider:
For a broader differential on plain film consider:
- 1. Doig AT. Baritosis: a benign pneumoconiosis. Thorax. 1976;31 (1): 30-9. Free text at pubmed - Pubmed citation
- 2. Chong S, Lee KS, Chung MJ et-al. Pneumoconiosis: comparison of imaging and pathologic findings. Radiographics. 2006;26 (1): 59-77. Radiographics (full text) - doi:10.1148/rg.261055070 - Pubmed citation
- 3. Marchiori E, Souza AS, Franquet T et-al. Diffuse high-attenuation pulmonary abnormalities: a pattern-oriented diagnostic approach on high-resolution CT. AJR Am J Roentgenol. 2005;184 (1): 273-82. AJR Am J Roentgenol (full text) - Pubmed citation
- 4. Dosios T, Karydas AG. Baritosis of the mediastinal lymph nodes. Ann. Thorac. Surg. 2003;76 (1): 297. Pubmed citation