infiltrating duct cell carcinomainvasive duct cell carcinomaduct carcinoma cells seencollecting duct renal cell carcinomainfiltrative ductal carcinomadifferentiated ductal carcinomapancreatic ductal carcinomamammary ductal carcinomanon small cell carcinomabiliary duct carcinomaneuroendocrine small cell carcinomakidney cell carcinoma