Comparative analysis of clinicopathological characteristics and prognosis between E-cadherin-negative breast lymphoepithelioma-like carcinoma and E-cadherin-negative invasive lobular carcinoma

Key Points

• This research aims to compare the clinicopathological characteristics and prognosis of E-cadherin-negative breast lymphoepithelioma-like carcinoma and E-cadherin-negative invasive lobular carcinoma.
• Comparative analysis of clinicopathological features between two carcinoma types.
• Assessment of lymphocytic infiltration levels.
• Evaluation of proliferative activity associated with each carcinoma type.
• E-cadherin-negative BLEC shows extensive lymphocytic infiltration.
• High proliferative activity is noted in E-cadherin-negative BLEC.
• E-cadherin-negative BLEC is associated with a relatively favorable prognosis.