pansinusitis with bilateral orbital cellulitis (left>right) with left optic perineuritis with extension into anterior and middle cranial fossa results in fungal granuloma in bilateral frontal lobe and in left medial temporal lobe with possibility of cavernous sinus thrombosis and acute infarction in left high parietal lobe with involvement of left premaxillary, retroantral area

Few signs in this case are
T2W hypointensity in maxillary sinus on left side.
Black turbinate sign on post contrast image.

Note the peripheral pattern of restriction diffusion, which can be used to differentiate from bacterial abscess.

Case by - Dr Abhishek Jain