Figure 1.

A. Shows the three grades of mucin as distinguished by visual inspection; B. Represents a diagrammatic version of the gridded glass slab with mucin deposited on its surface and a formula to calculate the area occupied by the mucin; C. Is a graphical representation of the distribution of hardness index within the three grades in the 36 patients with standard deviation; D. Is a graphical representation of the distribution of the three grades of mucin within the pathological categories of PMP. In the diffuse peritoneal adenomucinosis (DPAM) category there were much higher % of soft mucin compared to the other grades of mucin whilst in the peritoneal mucinous carcinoma (PMCA) category there were less soft mucin and almost similar to the others. SM = soft mucin; SHM = semi hard mucin; HM = hard mucin.