A Gastric Adenocarcinoma Case Presenting with Hematuria

Abstract

Gastric cancer is one of the most common cancers. The vast majority of gastric cancers are histologically classified as adenocarcinoma and may cause unexpected organ metastases.Primary bladder tumor is a common urological malignancy. The incidence of secondary bladder tumor from a distant organ is extremely rare. Secondary bladder tumors are usually caused by metastasis from anatomically adjacent organs such as the cervix, colon, and prostate. Differentiation of primary and secondary adenocarcinomas of the bladder is difficult, yet important in terms of making the right treatment choice. Metastasis of gastric adenocarcinoma to the bladder is very rare. The case presented herein is a 50-year-old male patient who underwent total gastrectomy for gastric adenocarcinoma and presented with hematuria while receiving systemic therapy. The mass lesion located in patient's bladder was resected using cystoscopy, and he was diagnosed with gastric adenocarcinoma metastasis as the final diagnosis. There are currently no guidelines for the management of this rare condition. Therefore, it is aimed with this case report to contribute to the limited literature on this rare condition.