939
Conversely , BRCA1 expression was reduced or undetectable in the majority of high - grade , ductal carcinomas , suggesting that absence of BRCA1 may contribute to the pathogenesis of a significant percentage of sporadic breast cancers . .
 Disease: ductal carcinomas; Disease: sporadic breast cancers
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: ductal carcinomas; Disease: sporadic breast cancers