Chronic invasive fungal sinusitis is a form of invasive fungal sinusitis.
On this page:
Clinical presentation
The condition has a more prolonged course than acute invasive fungal sinusitis, usually more than 12 weeks 5. Patients are usually immunocompetent or have a milder level of immunocompromise. There may be a history of chronic sinusitis.
Radiographic features
CT
CT usually shows homogeneous opacification of the affected sinus(es), iso- to hyperattenuating to muscle tissue.
Other suggestive features include:
relative lack of expansion of sinuses 2
mottled lucencies or irregular bone destruction may be seen
bone erosion localized to the area of extrasinus extension 2
extrasinus component of the disease more prominent than the intrasinus component 2
there may also be sclerotic changes in the bony walls of the affected sinuses representing chronic disease 3
MRI
Signal characteristics of affected region include:
T1: iso- or hypointense signal
T2: usually markedly hypointense signal
Differential diagnosis
-
acute invasive fungal sinusitis
clinical setting of less than 4 weeks 5
usually does not show hyperdense material within the sinus
bony sclerotic changes are uncommon
-
chronic granulomatous invasive sinusitis
indistinguishable on imaging
complicated chronic sinusitis
-
Expansion and thinning of involved sinus
complete opacification of sinus
Unable to process the form. Check for errors and try again.