Schizophyllum radiatum: An uncommon culprit of invasive fungal rhinosinusitis in an immunocompetent patient – A case report from India

<i>Schizophyllum</i> species are emerging human respiratory pathogens. We report India's likely first case of invasive fungal rhinosinusitis by <i>Schizophyllum radiatum.</i> A 32-year-old healthy woman presented with bilateral nasal discharge. Microscopic examination of the sinus aspirate showed septate hyaline hyphae and culture yielded fungal growth with sterile hyphae. The isolate was identified as <i>S. radiatum</i> by sequencing of the ITS region. This highlights the importance of genomic sequencing for the identification of non-sporulating molds.