Table 1: Type of mammary IELs and corresponding relative risks for invasive carcinoma. Atypical Ductal Hyperplasia (ADH), Atypical Lobular Hyperplasia (ALH).
Relative risk for invasive carcinoma | Type of mammary IEL | |
No increase | Adenosis | |
Low | Sclerosing adenosis | |
Intraductal papilloma | ||
Sclerosing papilloma | ||
Ductal hyperplasia | ||
Intermediate | ADH-ALH | |
High | DCIS | Low grade |
Intermediate | ||
High grade |