Fig. 4

Distribution of pTDP-43 pathology in 148 samples from ALS patients, including (from left to right) deltoid, paraspinous, diaphragm, and quadriceps. “NOS” represents muscles that were not specified by muscle group in the autopsy report and “Other” includes one positive gastrocnemius sample and one negative abdominal wall sample. The right-most bars show that pTDP-43 pathology was significantly more prevalent in axial (diaphragm, paraspinous) than appendicular (deltoid, quadriceps) samples