ABSTRACT
In forensic autopsies, some cases of poisoning of cyanide and agrochemical substances are noted. In these cases, the appearance of gastric mucosa and its content is essential and important to determine the cause of death because the appearance of them is usually specific to kinds of cyanide and agrochemical substances. So, full awareness of the appearance of gastric mucosa and its content is very important to forensic pathologist in these cases. The 134 autopsy cases are reviewed and the photographs of gastric mucosa and its content are collected. After the choose of good and typical photographs, the illustrations of these cases are displayed. The purpose of this study is offering the guidelines of appearance of gastric mucosa and its contents in cases of poisoning.