Case Presentation: A 21-year-old male, recently returned from training in the California desert, presented with a non-productive cough and chest pain. Imaging showed a right upper lobe cavitary lesion indicative of pneumonia, and bronchoalveolar lavage was positive for Coccidioides immitis. Treated initially with fluconazole, the cavitary lesion resolved. However, months later, he developed fevers, severe [...]