Invasion of paranasal sinuses by Aspergillus oryzae

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Abstract
A 24-year-old male patient receiving chemotherapy for acute promyelocytic leukemia developed fever, right periorbital swelling and mild right proptosis. A head scan showed opacification of the right maxillary and ethmoid sinuses with adjacent soft tissue swelling. Biopsy of the nasal mucosa demonstrated the typical septate hyphae of Aspergillus species which was later shown on culture to be Aspergillus oryzae. A. oryzae has only rarely been reported in human disease and there is confusion as to its precise identification and role. We would like to confirm the pathogenicity of A. oryzae with this uncommon presentation of aspergillosis and also emphasize the need to take adequate and multiple cultures in suspected cases so that the possibility of species identification will be maximized.

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