<prompt> Following are precursors of endometrial carcinoma except :Atypical adenomatous hyperplasiaAtrophic endometriumAdenocarcinoma in situCystic hyperplasia  <response>: Endometrial atrophy is the most common cause of post menopausal bleeding Reference :Textbook of Gynaecology; Sheila balakrishnan; 2nd edition; Pg no:245 