Harned R K, Wolf G L
Am J Gastroenterol. 1977 Jun;67(6):616-23.
A review of 108 cases of benign gastric ulcers and 33 ulcerated malignant gastric neoplasms showed that air-fluid levels were present within 25 benign ulcers and in only one malignant ulcer. These differences are statistically significant. Since, however, in unusual circumstances, a malignant ulcer may contain an air-fluid level, use of this roentgen sign alone to determine benignancy is not recommended. If used in conjunction with other accepted roentgen criteria, the presence of an air-fluid level within a gastric ulcer substantiates the diagnosis of benignancy in the majority of cases.
对108例良性胃溃疡和33例溃疡性恶性胃肿瘤的回顾显示，25例良性溃疡内存在气液平面，而恶性溃疡中只有1例存在气液平面。这些差异具有统计学意义。然而，由于在特殊情况下，恶性溃疡可能含有气液平面，因此不建议仅使用这一X线征象来确定良性与否。如果与其他公认的X线标准结合使用，胃溃疡内气液平面的存在在大多数情况下可证实良性诊断。
