ArticleCancer reports (Hoboken, N.J.)2020
Fluorescence in situ hybridisation analysis of human epidermal growth factor receptor 2 status for breast cancer cases in Brunei Darussalam.
Article in Cancer reports (Hoboken, N.J.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- Fluorescence in situ hybridisation analysis of human epidermal growth factor receptor 2 status for breast cancer cases in Brunei Darussalam.Cancer reports (Hoboken, N.J.) · 2020Article
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Abstract
backgroundBreast cancer is one of the leading cancers among females of Brunei Darussalam. There are four subtypes of breast cancer, including human epidermal growth factor receptor 2 (HER-2) positive breast cancer, which is known to be more aggressive and have a poor prognosis.
aimThis study aims to assess the proportion of HER-2 positive cases and the association of HER-2 positivity with patients' epidemiological and clinicopathological factors in Brunei Darussalam. METHODS AND
resultsA total of 146 breast cancer cases that were sent for fluorescence in situ hybridisation (FISH) analysis from 1 January 2012 to 31 December 2016 were obtained from The Brunei Cancer Centre, Brunei Darussalam. Data analysis was done with regards to age at diagnosis, ethnicity, stage at diagnosis and HER-2 results by immunohistochemistry (IHC) and FISH. Majority of the study population were diagnosed before the age of 50 years and the median age was 52.0 years. 58.2% (n = 85) cases were reported as IHC 3+, followed by 23.3% (n = 34) IHC 2+ cases and 18.5% (n = 27) negative cases. The proportion of true HER-2 positive cases in total by FISH analysis was 34.9% (n = 51). Majority of Stage IV HER-2 positive cases had metastases to the liver or bones.
conclusionsAge at diagnosis is significant in determining HER-2 status of tumours by FISH (P = .045). Tumour size (P < .001) and lymph node (P = .006) are significant in metastases of tumours. The proportion of HER-2 positive cases is consistent with findings from the Asian region but higher than that of Western countries. Determining false-positive and false-negative results by IHC test is important to ensure adequate treatment for patients with breast cancer.
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