Pulmonary baritosis (or simply known as baritosis) is type of benign non-fibrotic pneumoconiosis 2 which can be precipitated by aspiration of barium sulfate particles. Inhaled barium particles can lie in the lungs for years without producing symptoms or causing any impairment in lung function 3.
Baritosis is seen as extremely dense discrete shadows/nodules in a chest radiograph owing to the high radiopacity 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