AGR2 and mucinous adenocarcinoma: We can speculate that AGR2 could be a useful tool to differentiate mucinous cancers from other EOC, and this would be consistent with the fact that a major characteristic of AGR2 expression is to be also representative: i) of other mucinous adenocarcinomas subtypes from different origins (breast, colon, gastric, lung, pancreas, stomach, ...)[30]; ii) of mucin-secreting cells [36].