My ePortfolio Register   
 

Abstract | Full HTML Article | PDF ecancer 11 763 / https://doi.org/10.3332/ecancer.2017.763

Clinical Study

Breast cancer in Angola, molecular subtypes: a first glance

Purpose: The aim of this study was to investigate the breast cancer (BC) molecular subtypes according to its surrogate immunohistochemistry (IHC) markers. We conducted a preliminary study, to correlate the clinical pathological profiles and molecular subtypes of breast cancer in Luanda, Angola.

Methods: From January 2011 to 30 December 2014, 140 consecutive cases of microscopically confirmed invasive breast carcinoma were classified regarding histology and IHC (ER, PR, HER2, and Ki-67). Surrogate molecular subtypes were classified according to ESMO recommendations.

Results: All patients were female; the median age was 47 years (24–84 years). Invasive carcinoma NST was the most common type (91.4%) and grade 2 was prevalent (70.7%). Most tumours were locally advanced (stage III – 65% and stage IV – 3.6%). In 140 studied cases, 74 (52.8%) malignancies were hormone receptor positive; 25.7% were luminal A like, 19.3% luminal B and HER2 negative like, 7.9%
luminal B and HER2-positive like, 15.7% HER2 positive, and 31.4% were triple negative.

Conclusion: Women’s BC in Luanda-Angola is diagnosed at a young age and at an advanced stage. The two predominant molecular subtypes are HR positive and triple negative. The percentage of HER2-positive BC cases was high. Determining the molecular subtype using surrogate IHC markers has important treatment and prognostic implications for Angolan women with BC. There is an urgent need to
study a prospective BC series in order to confirm the present results.

Keywords: breast carcinoma, Angola, hormone receptors, molecular subtypes

Loading Article Metrics ... Please wait

Related articles

Research: Frozen section evaluation of sentinel lymph nodes in breast carcinoma: a retrospective analysis

Abstract | Full Article | PDF Published: 18 Oct 2017 / https://doi.org/10.3332/ecancer.2017.774

Research: A discrete transition zone between cuticle and cortex layers of a human hair fibre: changes observed in the presence of breast cancer

Abstract | Full Article | PDF Published: 13 Oct 2017 / https://doi.org/10.3332/ecancer.2017.772

Conference Report: Highlights from the WIN 2017 Symposium, 26–27 June 2017, Paris, France: ‘Expediting Global Innovation in Precision Cancer Medicine’

Abstract | Full Article | PDF Published: 27 Sep 2017 / https://doi.org/10.3332/ecancer.2017.770

Research: Limitations of workers diagnosed with cancer evaluated with Work Role Functioning Questionnaire-Br

Abstract | Full Article | PDF | Portuguese Published: 18 Sep 2017 / https://doi.org/10.3332/ecancer.2017.769

Review: Proteins regulating the intercellular transfer and function of P-glycoprotein in multidrug-resistant cancer

Abstract | Full Article | PDF Published: 18 Sep 2017 / https://doi.org/10.3332/ecancer.2017.768



Founding partners

European Cancer Organisation European Institute of Oncology

Founding Charities

Foundazione Umberto Veronesi Fondazione IEO Swiss Bridge

Published by

Cancer Intelligence