Autopsy of a case of cyanide poisoning shows all of the following features, EXCEPT:
Cyanide poisoning is associated with a characteristic smell of bitter almonds and not of bitter lemon. Mechanism: Cyanide inhibits the action of enzymes such as cytochrome oxidase, carbonic anhydrase. It blocks the final step of oxidative phosphorylation and prevent the formation of ATP. Ref:The Essentials of Forensic Medicine and Toxicology By Dr KS Narayan Reddy, Pages 560-1
Congested organs
Characteristic bitter lemon smell
The skin shows pinkish or cherry red colour
Erosion and hemorrhages in oesophagus and stomach