"Infection is believed to originate in the nasal cavity (most often the middle turbinate) with subsequent spread to the paranasal sinuses 3. Several fungal agents are implicated, including 1-2:"
"T1: intermediate low signal"
"T1 C+ (Gd): absent sinus mucosal enhancement suggests necrosis; invasion outside the sinus appears as an increased enhancement"
"Aspergillus spp: typically in neutropenic patients"
"Zygomycetes: usually in diabetic patients"
"Rhizopus spp."
"Mucor spp."
"Rhizomucor spp."
"Absidia spp."
"Aspergillus spp: typically in neutropenic patients"
"Zygomycetes: usually in diabetic patients"
"Rhizopus spp."
"Mucor spp."
"Rhizomucor spp."
"Absidia spp."
"Synthesised 7 variable model with high positive predictive value 8. Involvement of:"
"Pott puffy tumour"
"Unlike chronic invasive fungal sinusitis, acute infection generally does not demonstrate hyperdense material within the sinus on non-contrast CT. CT is particularly effective at assessing bony changes. Findings include 2:"
"Clinical presentation is variable but often dramatic, with rapid development of fever, facial pain, nasal congestion, epistaxis and sensation loss in the malar areas. Extension into the orbit, cavernous sinus, or intracranial compartment is frequent, resulting in deterioration in vision, proptosis, and neurological deficits, respectively 1,2."
"Presence of any one of the above findings should raise suspicious of invasive fungal sinusitis in high-risk patients 6. Mild periantral fat stranding is often the first sign of vascular invasion and spread beyond the paranasal sinuses. If extension into intracranial, intraorbital or cavernous sinus are suspected an MRI should be performed."
"Clinical presentation is variable but often dramatic, with rapid development of fever, facial pain, nasal congestion, epistaxis and sensation loss in the malar areas. Extension into the orbit, cavernous sinus, or intracranial compartment is frequent, resulting in deterioration in vision, proptosis, and neurological deficits, respectively 1,2."
"T1 C+ (Gd): absent sinus mucosal enhancement suggests necrosis; invasion outside the sinus appears as an increased enhancement"