Abstract
IntroductionMucinous carcinoma of the breast is an infrequent histological type. Prognosis is believed to be good but there are few data on its behaviour in the Mexican population. Material and methodsRetrospective, descriptive, observational study performed in 3 oncological referral centres in Mexico. We analysed the clinical and histopathological characteristics of patients with mucinous carcinoma of the breast between 2007 and 2017. ResultsA total of 152 patients were diagnosed with pure mucinous breast carcinoma. The median age was 56 years. An association was found between tumoural size (p = 0.002) and lymph node involvement (p < 0.001) with overall survival. The factors associated with disease-free survival were lymph node involvement and immunophenotype. Mean disease-free survival was 143.5 months for luminal A, 115.4 months for luminal B, 81 months for triple negative and 16 months for Her 2, p < 0.001. ConclusionsLymph node involvement is a risk factor for recurrence of mucinous carcinoma of the breast. Tumoural size and greater lymph node involvement are related to worse overall survival.
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