Abstract
A 70-year-old female was seen with a gastric cancer (Borrmann I), which was dislodged during chemotherapy. A tumor, measuring 45×35 mm in size, was found at the pyloric antrum (Figure 1, 2), and it was confirmed as gastric cancer, Borrmann I, papillary adenocarcinoma by the endoscopic examination (Figure 3, 4). Then, a combination chemotherapy (MFC+5-FU D.S.) was started because the family refused surgical treatment. The tumor became much smaller and transformed (Figure 5) when the general symptoms improved and she was discharged. During the follow-up observations she felt sever epigastralgia and was rehospitalized. The X-ray and endoscopic examinations could not find the tumor (Figure 6, 7, 8 ), and we thought that the tumor had dislodged. The biopsy from the previous location of the tumor revealed only necrotic tissue, however, one week after the second biopsy it revealed tumor cells. Despite of the liver metastasis she is now followed up as an outpatient. Case reports of dislodging of protruded gastric cancer are rare (Table 3). In our case, the necrotic change of the tumor's neck by chemotherapy and the location of the tumor, pyloric antrum where peristaltic movement is strong and frequent, seem to have caused the dislodging of the tumor.
