Breast malignant, males, children
Carcinoma subtypes
Lobular carcinoma - basal-like variant (subset)


Topic Completed: 1 August 2012

Minor changes: 25 June 2020

Revised: 23 January 2019

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PubMed Search: Basal like variant

Monika Roychowdhury, M.D.
Page views in 2020 to date: 26
Cite this page: Roychowdhury M OLD basal-like. PathologyOutlines.com website. http://www.pathologyoutlines.com/oldtopics/breastmalignantlobularbasal.html. Accessed August 7th, 2020.
Clinical features
  • Invasive lobular carcinoma cases include all molecular subtypes, include basal-like, and basal-like carcinomas include a variety of histologic subtypes (J Pathol 2008;216:141)
  • CK5 / 6 positivity, part of definition of basal-like tumors, is present in 17% of lobular tumors (Hum Pathol 2008;39:331)
  • Associated with grade 3 tumors (50%) and ER negativity, but similar morphology otherwise
Negative stains
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