PDGFRα immunoreactivity in longitudinal muscle (A), myenteric plexus region (D), and circular muscle (G). PGP9.5 immunoreactivity in longitudinal muscle (B), myenteric plexus region (E), and circular muscle (H). Overlap between PDGFRα and PGP9.5 immunoreactivity is shown for the longitudinal muscle (C), myenteric plexus region (F), and circular muscle (I). Arrowhead represents PDGFRα-ir cells forming networks around ganglia in several areas of the myenteric plexus. Tissue obtained from the normal gastric body of a human subject. Scale = 100 μm