Metastasis of Gastric Signet-Ring Cell Carcinoma to the Bladder: An Incidental Finding During Cystoscopy

Signet-ring cell carcinoma of the bladder is very rare pathology and can be seen as a primary disease or a metastatic manifestation. In this case report, we present the metastasis of gastric signet-ring cell carcinoma to the bladder, which was detected incidentally during follow-up of a 45-years-old male patient who had previous Ta low-grade urothelial cell carcinoma diagnosis.