Sinonasal chromoblastomycosis of the maxillary sinus.

A unique case of chromoblastomycosis, a chronic subcutaneous fungal infection, involving the maxillary sinus-a site rarely affected by this organism. The case highlights the diagnostic challenge posed by its non-specific clinical features, often mimicking chronic rhinosinusitis or neoplastic lesions. Histopathological examination revealed characteristic sclerotic (Medlar) bodies, confirming the diagnosis. Surgical debridement combined with prolonged antifungal therapy led to successful resolution. This report emphasises the importance of considering rare fungal aetiologies like chromoblastomycosis in atypical presentations of fungal sinusitis, especially in immunocompetent individuals.