"T1: low signal"
"T2: low signal. The presences of paramagnetic elements further shorten the relaxation times, and this can be a highlight on the susceptibility weighted sequence 5"
"T1 C+ (Gd): chronic inflammatory change of the sinus mucosa may enhance"
"Commonly only a single sinus is affected with a predilection for the maxillary sinus followed by the sphenoid sinus. The frontal and ethmoid sinuses are less often affected. A clue to the diagnosis includes heterogenous soft tissue density within the sinus with/without foci of calcification. Postobstructive change may be observed if the mycetoma obstructs the sinus drainage pathway leading to partial or complete sinus opacification 2."
Expected headings
"Signal characteristics"