My favorite is Legg–Calvé–Perthes disease. I had this as a child and it wasn't until filling out a medical form as an adult that I learned it was a name and not

My favorite is Legg–Calvé–Perthes disease. I had this as a child and it wasn't until filling out a medical form as an adult that I learned it was a name and not "leg calf perthes" https://en.wikipedia.org/wiki/Legg%E2%80%93Calv%C3%A9%E2%80%93Perthes_disease https://en.wikipedia.org/wiki/Legg%E2%80%93Calv%C3%A9%E2%80%...