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 ...

If the chronic sinusitis is due to noninvasive fungal sinusitis (fungal ball), it will cause only a few symptoms, which may only include a feeling of fullness, sinus pressure, and some discharge.