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Late changes in barium sulfate aspiration: HRCT features.
A Voloudaki1, N Ergazakis, N Gourtsoyiannis
1Department of Radiology, University Hospital of Heraklion, 71110 Crete, Greece. voloudak@med.uoc.gr
European Radiology
|August 21, 2003
Summary
Accidental aspiration of barium sulfate typically causes mild lung reactions. However, this case reveals barium can cause silent, mild pulmonary fibrosis, detectable by high-resolution computed tomography (HRCT) a year later.
Area of Science:
- Pulmonary Medicine
- Radiology
Background:
- Barium sulfate aspiration is an uncommon event.
- Early lung reactions are generally mild due to barium's inert nature.
- Long-term effects and fibrotic responses are not typically expected.
Observation:
- A case of barium aspiration was studied.
- High-resolution computed tomography (HRCT) was used to assess pulmonary sequelae one year post-aspiration.
- This study aimed to describe potential late pulmonary changes, which have not been previously documented.
Findings:
- HRCT revealed thickened interlobular septa, subpleural lines, subpleural cysts, and centrilobular micronodules.
- Barium particles were observed in a subpleural distribution.
- These findings suggest barium can induce clinically silent, mild pulmonary fibrosis.
Implications:
- Barium aspiration, though often considered benign long-term, may lead to subtle pulmonary fibrosis.
- HRCT is valuable in detecting delayed sequelae of barium aspiration.
- This case highlights the importance of considering barium's potential for chronic lung changes.