Skull base osteitis following fungal sinusitis.

Aspergillus sp. sinusitis is not uncommon in immunocompromised patients but is unusual in patients who are not immunocompromised. The disease may occur as a saprophytic condition, as an allergic sinusitis or as a potentially lethal invasive disease. The differentiation between non-invasive and invasive Aspergillus sp. sinusitis is crucial and this distinction is fully discussed. The treatment options are also considered. Invasive disease requires aggressive treatment with long-term antifungal agents in sufficient doses combined with wide surgical excision. We present a patient who presented with invasive Aspergillus fumigatus sinusitis and subsequently developed cranial neuropathies and skull base osteitis. She was initially treated with oral itraconazole (400 mg daily) for 18 months but due to lack of response this was changed to a new experimental oral azole (voriconazole) which was continued for a further 14 months. She has since remained well for the last five years.