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The Case for Autoantibody Screening in Stone Benchtop Workers
Tiffany Lin1, Jun Keng Khoo1, Ryan Hoy1,2
1Department of Respiratory Medicine Alfred Health Melbourne Australia.
Respirology Case Reports
|October 6, 2025
Summary
Occupational silica exposure can lead to silicosis and trigger severe autoimmune diseases. Proactive screening for autoimmune conditions in high-risk workers is crucial for early detection and intervention.
Area of Science:
- Occupational medicine
- Immunology
- Pulmonology
Background:
- Occupational silica exposure is a known cause of silicosis and is increasingly linked to systemic autoimmune diseases.
- Stone benchtop fabrication involves significant risk of silica dust inhalation.
Purpose of the Study:
- To report a case of complicated silicosis with progressive autoimmune disease in a stone benchtop fabricator.
- To emphasize the importance of autoimmune screening in silica-exposed workers.
Main Methods:
- Case report of a 40-year-old stone benchtop fabricator.
- Diagnosis of complicated silicosis through a screening program.
- Monitoring of autoimmune markers and clinical progression over time.
Main Results:
- The patient presented with asymptomatic silicosis and Raynaud's phenomenon, but with an elevated antinuclear antibody (ANA) titre.
- Over time, he developed progressive autoimmune disease affecting multiple systems and significant respiratory decline.
- ANA positivity in asymptomatic individuals may indicate future autoimmune disease.
Conclusions:
- Silica exposure can potentially trigger severe, multisystem autoimmune disease.
- Proactive autoimmune screening in high-risk occupational groups is vital.
- Early detection of autoimmune conditions in silica-exposed workers can mitigate long-term morbidity.
