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South African Journal of Surgery

versión On-line ISSN 2078-5151
versión impresa ISSN 0038-2361


MOKONE-FATUNLA, DH et al. Laterality of breast cancer at Dr George Mukhari Academic Hospital. S. Afr. j. surg. [online]. 2019, vol.57, n.3, pp.55-61. ISSN 2078-5151.

BACKGROUND: The purpose of this descriptive study was to determine and compare the incidence of left-sided and right-sided breast cancer at Dr George Mukhari Academic Hospital from January 2000 to June 2016. It aimed to determine if there was a significant variation in laterality of breast cancer at our institutionMETHOD: A retrospective study. Medical records of breast cancer (BC) patients who were newly diagnosed from January 2000 to June 2016 were reviewed. Emphasis was on biopsy results (histology and/or cytology) and/or history of chemotherapy, and breast cancer lateralityRESULTS: Out of 1482 patients, 1427 had unilateral BC and 55 (3.7%) bilateral cancer. A total of 789 (55.3%) patients had left-sided breast cancer (LSBC) and 638 (44.7%) had right BC. Left BC was 10.6% more common than right BC with a left to right laterality ratio (LRR) of 1.24. There was a statistically significant relationship between laterality and stage (p = 0.050), with the right breast having more advanced stage cancers (88.7%) compared to the left breast (85%). There was no statistically significant difference between age, site and histological type of BC and laterality (p = 0.740, p = 0.052, p = 0.394 respectivelyCONCLUSION: Left to right BC excess does exist in patients that were newly diagnosed at Dr George Mukhari Academic Hospital, South Africa, from January 2000 to June 2016

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