Case study: muscle twitching
A 58-year-old marathon runner complains of visible muscle twitching in both his calves after running. What is the diagnosis?
Case
A 58-year-old marathon runner complains of visible muscle twitching in both his calves after running. When asked he says he can’t feel the twitching it is only noticeable when looking at his calves.

Case study by Sapir Dreyer, Year 6 medical student, Hebrew University, Jerusalem.