Results will be assessed by following the time to radiographic or clinical recurrence of disease and survival. Patients will be stratified for entry based on histology. This will include 3 cohorts: 1) peritoneal mesothelioma; 2) low grade mucinous adenocarcinoma (including low grade mucinous neoplasms of borderline malignant potential); and 3) adenocarcinoma of gastrointestinal origin (other than low grade mucinous).