HighlightsPosterior reversible encephalopathy syndrome, syndrome characterized by headache, confusion, visual loss and seizures.Mesenteric leiomyosarcoma causing Posterior reversible encephalopathy syndrome.Symptoms disappearance after resection of the tumor, suggests a renin production cessation.

Key Clinical MessageIn any patient, the occurrence of postsplenectomy splenosis can complicate the planning of further surgeries. In our case, the gastric sleeve procedure was aborted, as it would have put the patient's life in danger. Therefore, only the gastric band was removed, eliminating future erosion.