Abstract
Prognosis of patients with stage IV gastric cancer remains up to date dramatically poor. A subgroup of these patients has only positive peritoneal cytology in the peritoneal lavage and represents a target issue of the recent ongoing research. The administration of neoadjuvant chemotherapy, either systemic or intraperitoneal or hyperthermic intraoperative peritoneal chemotherapy, with a variety of combinations of drugs has assisted some of these patients to become peritoneal cytology negative, with a significant implication in their prognosis. Staging laparoscopy is widely used to detect occult peritoneal disease and has, therefore, reduced the number of unnecessary laparotomies. However, recent reports point out a low sensitivity of staging laparoscopy and cytological exam in detecting viable cancer cells and focus on the need of more accurate methods of examining the peritoneal fluid by immunohistochemistry or molecular assays. This review focuses on the latest scientific evidence regarding the optimal management of positive peritoneal cytology gastric cancer patients.
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