Case Report: Diagnosis of bronchopulmonary candidiasis—refractory airway hyperresponsiveness, severe pneumonia, and normal serological markers

This report indicates that the clinical manifestations of bronchopulmonary candidiasis may be atypical relative to radiological and serological indicators. Although a single positive BALF culture is insufficient for definitive diagnosis, its integration with clinical characteristics can provide a crucial diagnostic clue. These cases thus provide valuable reference points for clinical diagnosis, though definitive validation through histopathological examination remains necessary.