CDH1 and neoplasm: By the same token, {peritoneal carcinomatosis} is more often associated with primary invasive lobular cancers than with invasive ductal cancers (χ2 = 18.75, df = 1, p < 0.01), as is the molecule {E-cadherin} (χ2 = 92.98, df = 1, p < 0.01; Supplement S3B), expression of which is known to be selectively lost in the former tumor type.