RT Journal Article SR Electronic T1 When Is Fluid in the Mastoid Cells a Worrisome Finding? JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 218 OP 220 DO 10.3122/jabfm.2013.02.120190 VO 26 IS 2 A1 Michael H. McDonald A1 Matthew R. Hoffman A1 Lindell R. Gentry YR 2013 UL http://www.jabfm.org/content/26/2/218.abstract AB Mastoiditis is a common clinical entity that is technically present in all cases of otitis media; only a minority of cases actually represents the otolaryngologic emergency of acute coalescent mastoiditis. When reviewing an image with a radiologic diagnosis of mastoiditis, looking for key signs such as destruction of bony septa and considering patient presentation can help distinguish mild mastoiditis from acute coalescent mastoiditis.