ObjectiveTo investigate the CT presenting rate and features of gastric bare area (GBA, including the area posterior to GBA and the adipose tissue in the gastrophrenic ligament) without pathologic changes.MethodsThirty cases with superior peritoneal ascites, but without pathological involvement of GBA were included into the study to show the normal condition of GBA, including the presenting rate and CT features. We selected some cases with GBA invasion by inflammation or neoplasm to observe their CT features. ResultsAll cases with superior peritoneal ascites showed the GBA against the contrast of ascites with the presenting rate of 100%. The GBA appeared at the level of gastricesophageal conjunction and completely disappeared at the level of hepatoduodenal ligament and Winslow’s foramen. The maximum scope of GBA presented at the level of the sagital part of the left portal vein with mean right to left distance of （4.39±0.08）cm (3.8~5.7 cm) (distance between the left and right layer of the gastrophrenic ligament). In acute pancreatitis, the width of GBA increased, in which local hypodensity area could be seen. In gastric leiomyosarcoma invading GBA, the mass could not separate from the crus of the diaphragm. In lymphoma and metastasis invading GBA, the thickness of GBA increased and the density was heterogeneous, in which lymph nodes presenting as small nodes or fused mass. ConclusionThe results of this study show that it is helpful to use contrast enhanced spiral CT scanning to observe the change of GBA and to diagnose retroperitoneal abnormalities that involving GBA comprehensively and accurately.
Citation：
LI Peng,CHEN Weixia,MIN Pengqiu. The CT Features of Gastric Bare Area under Pathological Conditions. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2003, 10(3): 284-287. doi:
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- 2. 王永贵主编.解剖学 [M]. 北京:人民卫生出版社,1997∶215～219.
- 3. Bannister LH,Berry MM, Collins P. Gray’s anatomy [M]. 38ed. London: Longman Group Ltd. 1995∶ 1754-1755.
- 4. Wald H, Polk HC Jr. Anatomical variations in hiatal and upper gastric areas and their relationship to difficulties experienced in operations for reflux esophagitis [J]. Ann Surg, 1983; 197(4)∶389.
- 5. 罗兆明，黄鸿钧. 胃上部及其周围结构的初步观察 [J]. 广州医学院学报，1985； 4（1）∶5.
- 6. 丁国芳，王海斌. 胃裸区的形态观察及其临床意义 [J]. 中国解剖学杂志，1991； 9（1）∶26.
- 7. 刘树伟，刘汉民. 膈下间隙的横断面解剖研究 [J]. 中华临床外科杂志，1996； 34（2）∶120.
- 8. Balthazar EJ. CT diagnosis and staging of acute pancreatitis [J]. Radiol Clin North Am,1989; 27(1)∶19.
- 9. Korobkin M, Silverman PM, Quint LE, et al. CT of the extraperitoneal space: normal anatomy and fluid collections[J]. AJR Am J Roentgenol,1992; 159（5）∶933.
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- 11. Lim JH, Yoon Y, Lee SW, et al. Superior aspect of the perirenal space: anatomy and pathological correlation [J]. Clin Radiol, 1988; 39(4)∶368.
