Herold G, Kraft K
Department of Internal Medicine I, University of Ulm.
Z Gastroenterol. 1995 May;33(5):260-4.
Adenocarcinoma is a common histological diagnosis of gastric neoplasias. Only if typical elements of pancreatic structures are found nearby or in the tumor, this particular origin can be proven. The development of a carcinoma within ectopic (or heterotopic) pancreas is extremely rare. Because of the accidental observation of two of such cases this topic is discussed in the present report. There are only sporadic cases available in literature and these mostly refer to pancreatic ectopy localized in the stomach or duodenum. Due to their origin and spread, the tumors form an intramural mass with relatively late mucosal invasion. Therefore malignancy is difficult to prove by endoscopic biopsy. In general the patients' prognosis is poor, survival varying between months and many years.
腺癌是胃肿瘤常见的组织学诊断。只有在肿瘤附近或肿瘤内发现典型的胰腺结构成分时，才能证实这种特殊的起源。异位（或迷走）胰腺内发生癌极为罕见。由于偶然观察到两例此类病例，本报告对该主题进行了讨论。文献中仅有散发病例，且大多是位于胃或十二指肠的胰腺异位。由于其起源和扩散方式，肿瘤形成壁内肿块，黏膜侵犯相对较晚。因此，通过内镜活检很难证实恶性肿瘤。一般来说，患者预后较差，生存期从数月到数年不等。
