Atypical lobular hyperplasia (ALH)

Question 1

Similarity and difference to LCIS

Answer 1

Shares features with lobular carcinoma in situ (LCIS), but cells do not distend more than 50% of acini within a lobule

Question 2

Are LCIS and ILC lesions monomorphic or heterogenous

Answer 2

Both are monomorphic

Question 3

Loss of ____ is seen in both LCIS and ILC

Answer 3

E-cadherin