PMC9484660_01
(a) Initial chest CT scan with maximal intensity projection showing a tree-in-bud pattern predominantly in the upper lobe (arrow). (b) The parenchymal window on a non-enhanced lung CT scan shows scattered nodular consolidation (arrow). (c) Appearance of a pleural effusion (star) and worsening of consolidation 15 days after admission.
acmi-4-450-g001.jpg
PMC9484660_01_acmi-4-450-g001.jpg
F1
A chest CT scan with maximal intensity projection showed scattered nodular consolidation with a tree-in-bud pattern predominantly in the upper lobe (Fig. 1). On day 15 of admission, a chest CT scan showed the appearance of a pleural effusion and worsening of consolidation (Fig. 1).
Direct examination of BAL fluid shows annelloconidia of Saprochaete capitata (400x).
acmi-4-450-g002.jpg
PMC9484660_01_acmi-4-450-g002.jpg
F2
Direct examination of BAL fluid showed septate hyphae and annelloconidia (Fig. 2).
Growth of yeast-like, white-to-cream-coloured, dry, cottony colonies of S. capitata after 48 h on Sabouraud dextrose agar (35  C).
acmi-4-450-g003.jpg
PMC9484660_01_acmi-4-450-g003.jpg
F3
Culture on Sabouraud media showed the growth of cream-coloured, dry, cottony and circular colonies after 48 h of incubation at 35  C (Fig. 3).
Lactophenol cotton blue stain of BAL cultures shows true hyphae and arthroconidia.
acmi-4-450-g004.jpg
PMC9484660_01_acmi-4-450-g004.jpg
F4
Lactophenol cotton blue preparation showed true hyphae with rectangular arthroconidia without blastoconidia (Fig. 4).