%0 Journal Article %A Y Anzai %A R B Lufkin %A B A Jabour %A W N Hanafee %T Fat-suppression failure artifacts simulating pathology on frequency-selective fat-suppression MR images of the head and neck. %D 1992 %J American Journal of Neuroradiology %P 879-884 %V 13 %N 3 %X PURPOSE To describe fat-suppression failure artifacts and to caution against their misinterpretation.METHOD Magnetic-susceptibility artifacts were studied in a phantom model and the results were compared to MR images obtained in clinical cases.FINDINGS Artifacts manifested themselves as regions of focal fat-suppression failure and appeared as bright signals without geometric distortions at magnetic-susceptibility interfaces along the static field (z) direction. The location and extent of these artifacts were independent of either frequency or phase-encoding direction and are different from those observed in gradient-echo images.CONCLUSIONS In representative clinical MR exams, these artifacts were identified in the high nasopharynx and low orbit and should not be misinterpreted as pathology. %U https://www.ajnr.org/content/ajnr/13/3/879.full.pdf