Malignant
Borderline/low grade
Primary
DMPM (Diffuse Malignant WDPM Peritoneal Mesothelioma)
(Well-differentiated Papillary Mesothelioma); MPM (Multicystic Peritoneal Mesothelioma)
PPSPC (Primary Peritoneal Serous Papillary Carcinoma)
DSRCT (Desmoplastic Small Round Cell Tumor)
Secondary
Intra-abdominal origin
Colorectal cancer