<prompt> Flea bitten appearance of stomach mucosa is seen in:Arsenic poisoningSulphuric acid poisoingPhosphorus poisoningViper snake bite  <response>: PM findings of acute arsenic poisoning : 1. Gastrointestinal congestion is a feature in acute arsenic poisoning and varies from reddening of mucosa red velvet to frank haemorrhagic gastritis. 2. Focal haemorrhages giving rise to flea bitten appearance is said to be characteristic. 3. Intestines may be inflamed and may contain rice water contents. 4. Subendocardial haemorrhages are often seen in hea. 