Aspects épidémio-cliniques des cancers du sein au Service d´Oncologie de Fianarantsoa, Madagascar de 2011 à 2018

INTRODUCTION: we conducted the first epidemiological study of patients with breast cancers living in Fianarantsoa. The purpose of this study was to describe the epidemiology and clinical features of these patients in the Department of Oncology Fianarantsoa. METHODS: we conducted a retrospective and descriptive study in the Department of Oncology at the University Hospital Center of Tambohobe over a period of 8 years (2011-2018). All patients with breast cancer diagnosed based on cytological and/or histological examination were included. The parameters studied were: age, occupation, a family history of breast cancer, menarche, menopause, parity, use of oral contraceptives, smoking, circumstances leading to detection, breast symptoms, signs of locoregional and distant spread, tumour site and stage of the disease. RESULTS: the study included 62 patients with an average age of 52.83 ± 10.47 years. Housewives accounted for 39% (n = 24) of cases. No patient had an early menarche. Late menopause had occurred in 6.45% (n = 4) of patients and a family history of breast cancer was found in 8.06% (n = 5) of patients. Chewing tobacco was used by 17.74% (n = 11) of patients. Patients reporting breast symptoms accounted for 95.2% (n = 59). Breast cancers had affected the upper outer quadrant in 53.23% (n = 33) of cases. Stage III breast cancer was diagnosed in 55% (n = 34) of cases and stage IV in 32% (n = 20) of cases. CONCLUSION: in patients diagnosed with cancer at an advanced stage, risk factors for breast cancer were little observed.