Materials and Methods:122 radiant quadrant sections drawn from 18 cases of gastric malignant ulcers were used to observe the juxta-ulcer mucosal changes comparing with radiological manifestation.

• 材料与方法：对18例胃恶性溃疡的122处胃切面，采用放射状象限取材对照法观察溃疡旁粘膜病变。