Metastatic Gastric Cancer to the Colon

Abstract

Gastric cancer is one of the most common and deadly cancers worldwide, especially amongst older males. Current data suggest gastric cancer is the fifth most common neoplasm and the third most deadly cancer, with an estimated 783,000 deaths in 2018. Risk factors associated with the development of gastric cancer include obesity, gastroesophageal reflux disease, Helicobacter pylori infection, and low socioeconomic status. Diagnosis of gastric cancer can be accomplished by endoscopy, which allows the clinician to obtain a biopsy specimen. Endoscopic ultrasound is also an important modality that is helpful in assessing tumor invasion. The most common sites of metastatic gastric cancer in descending order are the liver, peritoneum, lung and bone. Rarely will gastric cancer metastasize to the colon. Here we present a rare case of colonic metastasis of a primary gastric adenocarcinoma.