The histological structure and distribution of mast cells of hedgehog esophagus.
The objective this study was to not only observe the microstructure of hedgehog esophagus by using paraffin section technology and HE staining, but also indentify distribution of mast cells in the esophagus by using toludine blue staining. These results show that the mucosa of the hedgehog esophageal wall has lots of longitudinal folds and is covered by stratified epithelium with keratinized squamous superficial cells. The thickness of mucosa is 142.109 0 µm. The submucosa is well developed, which has a variety of esophageal glands and ducts, and its thickness is up to 327.390 6 µm. The muscular layer with 440.842 8 µm thick consists of the internal circular and external longitudinal layer. Mast cells with many various shapes were observed in lamina propria, lamina lamina muscularis, submucosa and adventitia. These results indicate that hedgehog esophageal wall is full of ductility. Histological structures are coincident with its digestive function and food habit feature. A large number of mast cells can provide the effective immune barrier for esophageal mucosa of hedgehog.