Diagnostic and Therapeutic Endoscopy / 2014 / Article / Tab 1

Clinical Study

Status of the Gastric Mucosa with Endoscopically Diagnosed Gastrointestinal Stromal Tumor

Table 1

Extended classification (A-B classification) of gastritis.

Magnified endoscopic image of nonatrophic mucosa

B-0: uniform round pits (crypt openings: Cos) surrounded by a regular honeycomb subepithelial capillary network (SECN) and a regular arrangement of collecting venules seen as starfish-like structures (basic appearance of an H. pylori-negative patient).
B-1: round pits (COs) surrounded by a regular or mild irregular honeycomb SECN; no collecting venules.
B-2: round pits (COs) and dividing sulci; no normal SECN or collecting venules.
B-3: dilated pits (COs) with more dense sulci; no normal SECN or collecting venules.

Magnified endoscopic image of atrophic mucosa or gastric antrum

A-1: ridged surface structures surrounding dilated, coiled subepithelial capillaries (SECs).
A-2: villous to granular surface structures including irregular, narrowed, coiled SECs.

Magnified image of H. pylori-noninfected gastric antrum

A-0: a regular tubular mucosal pattern, along which a capillary network is seen. In some cases, arcuate white zones are surrounded by round or oval white zones.