Fig. 2

Muscle imaging studies of the nine enrolled patients. A–C Examples of muscle fatty infiltration at the pelvis level. D–F Examples of muscle fatty infiltration showing the trefoil with single fruit sign at the proximal thigh level, consisting of three leaflets formed by relative sparing of the sartorius, adductor longus, and gracilis muscles and one single fruit formed by relative sparing of the semitendinosus muscle G. H Frequency of fatty infiltration of each individual muscle was represented as a percentage of all patients. Green bars representing the percentage of each muscle affected for each score. The numbers within the square brackets indicating the median score for each individual muscle. A and D patient 2; B and E patient 3; C and F patient 5