Rectal metastasis from a previously resected carcinoma of the pancreas: a case report

Pancreatic cancer (PC) is the fifth most frequent cause of cancer death in the world (1,2), and its overall 5-year survival is less than 4% (3). At diagnosis, many cases are in well-advanced stages of metastasis and dissemination with peripheral invasion of the retroperitoneum vascular system or nerves (4-6), and the types of PC recurrence frequently involve liver metastasis (LM) and peritoneum dissemination (7-9). In contrast, rectal metastasis is extremely rare. Here, we report a case of an elderly patient with metastatic disease to the rectum who previously presented with a primary pancreatic adenocarcinoma. This case report was prepared following the CARE Guidelines (10)