Abstract

The classification of breast tumours continues to evolve, with the integration of new knowledge from research rapidly being translated into clinical practice. In this volume of the World Health Organization (WHO) classification of tumours series’ fifth edition, which is an update of the fourth-edition breast tumours volume published in 2012, the descriptions of breast tumours follow the familiar systematic approach of previous volumes, with the content now organised in sequence from benign epithelial proliferations and precursors, through benign neoplasms, to in-situ and invasive breast cancer, followed by mesenchymal and haematolymphoid neoplasms, tumours of the male breast, and genetic tumour syndromes. A study of 70 breast carcinoma patients carried out in the Dept. of Pathology in our institute during January 2022 to june 2022 for a duration of 6 months. Among the 70 cases studied, 5 histological subtypes of breast carcinoma were encountered with invasive carcinoma (IDC- NOS type) being the most common (88.5%). This was followed by two cases (2.85%) of mucinous carcinoma and two cases (2.85%) each of lobular carcinoma, osseous and cartilaginous producing metaplastic carcinoma and invasive papillary carcinoma

Description