Classification Estrogen dependent and estrogen independent are two different pathogenetic types One with history of exposure to unopposed estrogen(either endogenous or exogenous) Other type with no source of estrogen stimulation of endometriumClassification • Estrogen dependent and estrogen independent are two different pathogenetic types: -- One with history of exposure to unopposed estrogen (either endogenous or exogenous). -- Other type with no source of estrogen stimulation of endometrium