"T1: hypointense"
"T2/FLAIR: hyperintense"
"T1 C+: no enhancement"
"MRS: in the affected white matter"
"The following passage is from the original description in the American Journal of Roentgenology by Ciaran F Keogh 1: "The term “chasing the dragon” appears to have originated in China in the 1920s and became a popular mechanism of heroin administration in the 1950s in Hong Kong because the drug was cheap but impure. A small quantity of powder is placed on aluminium foil, which is then heated underneath with a lighter or matches. The heroin liquefies into a reddish-brown glob, which moves around on the foil and emits a white vapour. The glob or “dragon” is “chased” with the lighter underneath while the vapour is sucked through a straw or pipe..."."
"The following passage is from the original description in the American Journal of Roentgenology by Ciaran F Keogh 1: "The term “chasing the dragon” appears to have originated in China in the 1920s and became a popular mechanism of heroin administration in the 1950s in Hong Kong because the drug was cheap but impure. A small quantity of powder is placed on aluminium foil, which is then heated underneath with a lighter or matches. The heroin liquefies into a reddish-brown glob, which moves around on the foil and emits a white vapour. The glob or “dragon” is “chased” with the lighter underneath while the vapour is sucked through a straw or pipe..."."
"midbrain white matter (e.g. medial lemniscus)"
"sparing of the subcortical U-fibres and adjacent grey matter structures (e.g. dentate nuclei)"