Mycetoma, more properly called fungus ball, expands within the confines of an immunocompetent, nonatopic host sinus and does not invade or penetrate the sinus mucosa. Aspergillus is the primary ...

Fungal Ball (Mycetoma): This occurs when fungal elements accumulate in the sinus cavities, forming a dense mass. It’s typically non-invasive but can cause discomfort and block normal sinus drainage.