Fig. 2From: Congenital hyperinsulinism associated with Hirschsprung’s disease—a report of an extremely rare caseImmunohistochemical staining of acetylcholinesterase (AchE) in the rectal mucosa showed increased AchE staining of nerve fibers in the mucosal lamina propria and muscularis propria (arrow), and no ganglion cells were observed in the submucosal Meissner’s plexusBack to article page