histological confirmation of specific types of endoscopically diagnosed gastritis , however , was only found in 3/9 cases of chronic atrophic gastritis ( cag ) , 10/14 cases of chronic ( superficial ) gastritis ( cg ) and in none of six cases of acute gastritis ( ag ) , indicating that endoscopic diagnosis of specific types of gastritis is relatively inaccurate .
C0017154
chronic atrophic gastritis
C0017152
gastritis