Metastatic Colon Cancer to the Urinary Bladder: A Case Report

high prevalence. Clinicians are therefore considerably familiar with its sites of metastasis, which commonly involve the liver, lungs, bones, brain, and peritoneum. Adenocarcinoma is an unusual form of urinary bladder carcinoma, accounting for 0.5-2% of all primary bladder malignancies. A more common condition is adenocarcinoma originating in an organ adjacent to the bladder, typically the colon, prostate, or female genital organs, with direct metastatic invasion into the bladder. The descending colon is a rare site of origin for distant metastasis into the bladder. Here, we present and discuss a case of this rare condition.