Figure 16a. Normal forefoot nerve anatomy. (a) Distal coronal spin-echo T1-weighted MR image (400/12) demonstrates the branches of the DPN for the first dorsal space (circled) and the branches of the SPN for the second through the fourth dorsal spaces (arrows). (b) Distal coronal spin-echo T1-weighted MR image (400/12) shows the medial dorsal (thin arrow) and medial plantar (thick arrow) hallucal nerves.