case_images: PMC9793728_01
case_images: Clinical feature. The lesion on the right ear.
case_images: CCID-15-2841-g0001.jpg
case_images: PMC9793728_01_CCID-15-2841-g0001.jpg
case_images: f0001
case_images: Histological features. (A) Aspergillus clusters can be seen (red arrow), primarily neutrophil (black arrow)-dominated inflammatory necrotic tissue and keratinized epithelium (HE x100). (B) PAS-positive hyphae of aspergillus (PAS x400). (C) Fungi are Alcian blue positive (AB x400). (D) Basal cell-like tumor masses can be seen in the dermis, with extensive infiltration between fibers, fenestrated arrangement of cells around the masses (red arrow) (HE x200).
case_images: CCID-15-2841-g0002.jpg
case_images: PMC9793728_01_CCID-15-2841-g0002.jpg
case_images: f0002
case_images: Histopathological examination of the lesions showed visible Aspergillus clusters, mostly neutrophil-dominated inflammatory necrotic tissue and keratinized epithelium (Figure 2A). Acid-Schiff stain showed fungal hyphae, which were septate and branched (Figure 2B). Alcian blue staining shows fungal mycelium and spores (Figure 2C). A second histopathological examination showed a basal cell-like tumor mass in the dermis with extensive infiltration between the fibers and a fenestrated arrangement of cells around the mass (Figure 2D).