A severe oxaliplatin immune-induced syndrome after oxaliplatin-based pressurized intraperitoneal aerosol chemotherapy (PIPAC).

Objectives: Oxaliplatin immune-induced syndrome (OIIS) was recently recognized as an uncommon complication of oxaliplatin therapy. Methods: We report an exceptionally OIIS after pressurized intraperitoneal aerosol chemotherapy (PIPAC). Results: Our patient developed a severe OIIS probably related to the intraperitoneal administration of oxaliplatin. Specific tests were performed and detected high-titer antibodies to oxaliplatin. Conclusions: The OIIS is a rare. Physicians had to be aware of that clinical situation because it could be reversible, even in case of peritoneal advanced disease, and ICU treatment is justified.