Online ISSN: 2515-8260

Triple Positive breast cancer: A case series

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Vivek Gupta1 , Prerna Agarwal2 , Sunita Vagha3 .

Abstract

Introduction: Breast cancer is the most common malignancy in women around the world, accounting for 25.1 % of all cancers among women. Breast cancer are classified in different molecular subtypes depending on hormone receptor positive or negative and human epidermal growth factor receptor 2 status. All the three receptors labelled as ‘triple positive’ breast cancer are rare entity. We herein describe a case series of three patients diagnosed as invasive ductal carcinoma with Immunohistochemistry (IHC) positive for all three receptors (Hormone receptors and human epidermal growth factor receptor). Case presentation: Three patients aged 67, 40 and 34 years presented with breast lump and were diagnosed invasive ductal carcinoma. There was no history of familial breast cancer, any other malignancy, or hormonal medication.Modified radical mastectomy was done and specimen sent to surgical pathology department for histopathology. Modified Bloom Richardson’s score was 7 and 8 with histological grade 2 for two of the cases. IHC was performed and was positive for Hormone receptor and human epidermal growth factor receptor. All the three cases were labelled as ‘Triple Positive’. Conclusion: Breast cancer with all three receptor positive are rare to find but these cases do exist. The biological significance and cross talks of their related pathways should be investigated further for ‘triple positive’ breast cancer to determine intrinsic as this would help to view the treatment options if these patients receive endocrine treatment in combination with HER2 blocking agents or a separate therapy.

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