Gastrin cell immunofluorescence in conventionally fixed and stained tissue sections.

We describe a method for visualizing gastrin cells by immunofluorescence that can be applied to tissues conventionally fixed and previously stained with hematoxylin and eosin. It results in a clear demonstration of surrounding structures. This technique permits the use of a broad of histological specimens for gastrin immunofluorescence and may also prove useful in the immunohistochemistry of other gastrointestinal endocrine cells.