ABSTRACT
Chronic atrophic gastritis is a precancerous lesion. A commonly used test for the diagnosis of chronic atrophic gastritis, gastric endoscopy with biopsy collection, and a good serological test would be best include low levels of pepsinogen I [PGI] or a low PGI/PGII ratio. To confirm the use of serum pepsinogens as a screening marker in atrophic gastritis. A study was conducted in the period between December 2005 and March 2006 on 25 patients with artophic gastritis attending Gastroenterology and Hepatology Teaching Hospital in Baghdad, and 25 healyh control subjects. Sera were tested for PGI and PGII by ELISA test the serum PGI were decreased significantly with artophic gastritis and the PGI/PGII ratio were decreased in [78%] of patient group and not affected in healthy people