Beeswax and a hairy MRI image

A 2004 study called “Magnetic Susceptibility Artifacts on MRI: A Hairy Situation” includes this image, with the description: “15-year-old boy with acute sinusitis and subdural empyemas. Gadolinium-enhanced … images show left subdural empyema and image distortion from susceptibility artifacts caused by iron oxide particles suspended in beeswax dressing in patient’s hair.”