Fig. 3: Representative imaging of MSA patients with HCBs.
From: “Hot cross bun” is a potential imaging marker for the severity of cerebellar ataxia in MSA-C
a–e Pontine “cross sign” stages 1–5. a Stage 1 at an emerging vertical T2 high signal line. b Stage 2 where the clear vertical line appeared. c Stage 3 where the horizontal line emerged. d Stage 4 where the horizontal line appeared as well as the vertical line completed (“cross” line completed). e Stage 5 where clear cross bun sign accompanied with pontine base atrophy.
