How is sarcoidosis diagnosed?

Updated: Sep 15, 2020
  • Author: Nader Kamangar, MD, FACP, FCCP, FCCM; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Diagnosis requires biopsy in most cases. Endobronchial biopsy via bronchoscopy is often done. The yield is high; results may be positive even in patients with normal chest radiographs. The central histologic finding is the presence of noncaseating granulomas with special stains negative for fungus and mycobacteria.

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