“…Although primary peritoneal malignancies are rare, the peritoneum is a common site of metastases or peritoneal carcinomatosis (PC) for organs within the peritoneal cavity. Most commonly, PC arises from appendiceal, colorectal, ovarian, and gastric malignancies [ 1 , 2 , 3 ]. While less frequent, PC can also arise from gastrointestinal (GI) malignancies from other abdominal organs, including the small bowel, pancreas, gallbladder, and rarely from non-GI and extra-abdominal organs, such as breast, lung, and melanoma [ 1 , 2 , 3 , 4 ].…”