SPECIAL SELECTED TOPICS- RESPIRATORY SYSTEM DISORDERS-SSTRSDO-QAA 015
What
is Caplan syndrome?
Caplan syndrome is the association of rheumatoid arthritis
with pneumoconiosis, particularly coal workers' pneumoconiosis or silicosis.
Patients develop multiple, well-defined rheumatoid nodules within the lungs.
These nodules consist of central fibrinoid necrosis
surrounded by inflammatory cells and fibrosis. The syndrome occurs mainly in
individuals with occupational dust exposure and rheumatoid arthritis. Pulmonary
nodules may enlarge rapidly but often remain asymptomatic.
Respiratory symptoms are primarily related to the underlying
pneumoconiosis. Chest radiographs demonstrate multiple rounded pulmonary
nodules. The condition reflects an abnormal immune response triggered by dust
exposure.
Management includes treatment of both rheumatoid arthritis
and the underlying occupational lung disease.
PROFESSOR OF MEDICINE
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