Coccidioides immitis and Mycobacterium tuberculosis diagnosed by endoscopic ultrasound.

The use of endoscopic ultrasound in staging non-small cell lung cancer is well known. Its role in diagnosing non-malignant conditions that cause mediastinal adenopathy is still not well established. We diagnosed Coccidioides immitis and Mycobacterium tuberculosis in two patients using endoscopic ultrasound.