"Microscopic appearance "
"T1: overall high signal due to cholesterol component and methaemoglobin +/- low signal rim due to haemosiderin rim, and thinned adjacent bone"
"T1 C+ (Gd): no central enhancement although faint peripheral enhancement may be difficult to see due to intrinsic high T1 signal of lesion which is not saturated (not an adipose tissue)"
"DWI/ADC: Typically, no restricted diffusion 6 , although elevated DWI and low ADC signal may be present in the context of haemorrhagic products 10"
Expected headings
"Microscopic appearance "
"Cholesterol granulomas typically affect young to middle-aged patients often with a history of chronic otitis media. There is no recognised gender predilection 3."