<prompt> The risk of endometrial cancer is highest with the following histological pattern of endometrial hyperplasia :Simple hyperplasia without atypiaSimple hyperplasia with atypiaComplex hyperplasia without atypiaComplex hyperplasia with atypia  <response>: Risk of endometrial cancer Simple hyperplasia without atypia: 1 Complex hyperplasia without atypia: 3 Simple hyperplasia with atypia: 8 Complex hyperplasia with atypia: 29 