<prompt> Features, which are evaluated for histological grading of breast carcinoma, include all of the following except -Tumour necrosisMitotic countTubule formationNuclear pleomorphism  <response>: Ans. is a i.e. Tumour Necrosis For histological grading of breast carcinoma three individual factors are assessed.Nuclear pleomorphism Tubule formation Mitotic countThe most commonly used histological grading system is Nottingham histologic score also ka Scarff-Bloom- Richardson 