Fig. 1From: Invasive fungal tracheobronchitis in mechanically ventilated critically ill patients: underlying conditions, diagnosis, and outcomesChest radiograph and bronchoscopic and histological examinations of IFT. a Invasive Aspergillus tracheobronchitis. b Invasive Candida tracheobronchitis. c Mucorales-related invasive tracheobronchitis. d Bronchoscopic view of invasive Aspergillus tracheobronchitis. e Bronchoscopic view of invasive Candida tracheobronchitis. f Bronchoscopic view of Mucorales-related invasive tracheobronchitis. g Histopathological examination revealed septate fungal hyphae branching at a 45° angle (arrowhead), which is characteristic of Aspergillus spp. (magnification: 400×). h Histopathological examination revealed yeast cells and pseudohyphae (star), which are characteristic of Candida spp. (magnification: 400×). i Histopathological examination revealed broad, thin-walled, non-septate hyphae, which are characteristic of Mucormycete (left arrowhead) and the other septate fungal hyphae branching at a sharp angle, which are characteristic of Aspergillus spp. (right arrowhead) (magnification: 400×)Back to article page