Fig. 5From: Rare complication of bronchoesophageal fistula due to pulmonary mucormycosis after induction chemotherapy for acute myeloid leukemia: a case reporta, b Bronchoscopic biopsy histology shows many fungal hyphae with necrotic debris. The hyphae appear non-septate and thin-walled. Most hyphae appear broad-branching, with some hyphae appearing to branch at right angles (black arrow) upon staining with hematoxylin and eosin (×400)Back to article page