2008, Number 1
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Gac Med Mex 2008; 144 (1)
Recurrencia y supervivencia en cáncer mamario temprano con inmunofenotipo triple-negativo
Gerson R, Alban F, Villalobos A, Serrano A
Language: Spanish
References: 36
Page: 27-34
PDF size: 56.16 Kb.
ABSTRACT
Background: Axillary lymph node status, hormonal receptors (HR) and HER2 expression are significant prognostic factors for early breast cancer. Triple negative immunophenotype (HER2 and HR negative) is associated with a high frequency of recurrence and lower overall survival. The objective was assess clinical behavior, recurrence and survival of patients with triple negative early breast cancer and patients with other immunophenotypes.
Material and methods: We carried out a retrospective study among women with stages IIIB over 18 years with determination of HR and HER2 expression by immunohistochemical assay. We identified 5 groups: triple negative, triple positive, HER2 negative & HR positive, HER2 positive & HR negative, HER2 negative & 1 HR positive. We recorded age, date of diagnosis, clinical stage, tumor size, axillary lymph node status, ER, PR, HER2, p53, angiogenesis, Ki67, type of surgery, adjuvant treatment, time to recurrence, number and recurrence site and overall survival.
Results: 17 patients (15.4%) had triple negative phenotype, 14 (12.7%) triple positive, 52 (47.3%) were localized in group 3, 11(10%) in 4 and 16 (14.5%) in group 5. Triple negative phenotype was associated with increased cellular proliferation (p<0.000); being young (median 43 years), large tumor size (median size 2.5cm) lower proportion of patients in stage I and high frequency of p53 positive (78.5%). We observed a high frequency of recurrence and death among the triple negative group and among the HER2 positive and HR negative cases.
Conclusions: Triple negative breast cancer is more common among young women and is associated with a high frequency of recurrence and mortality. Clinical behavior among triple negative breast cancer cases is aggressive and displays a similar clinical profile that observed among HER2 positive and HR negative patients.
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