Morphological description of peritoneal lesions on radiological, intraoperative and pathological examination*
| Radiological evaluation | Visual inspection | Pathological examination |
| Normal peritoneum | Normal peritoneum | Normal peritonuem |
| Tumour nodule/deposit | Tumour nodule | Tumour nodule |
| Scalloping | Confluent nodules | Clustering of nodules |
| Calcification | Plaque | Thickening |
| Thickening | Thickening | Scarring |
| Confluent disease | Scarring | |
| Infiltration of adipose tissue | Adhesion | |
| Retraction |
*The description/definition of each morphological type is provided at the end of the PCI forms (online supplemental files 2–4).
PCI, Peritoneal Cancer Index.