100 women with postmenopausal bleeding undergoing 2D greyscale vaginal ultrasound and 3D Endometrial power Doppler and the features were classified using six different vascular patterns described by IETA group including the following patterns; single dominant vessel without branching, with branching, multiple vessels with focal origin, with multifocal origin at the myometrium-endometrium junction, scattered vessels or circular flow (Kucur et al., 2013 ).

All patients then had Office hysteroscopy carried out in the outpatient clinic using vaginoscopic approach (Cooper et al., 2010). With endometrial samples from lesions or from the cavity for histopathological analysis.

To assess the endometrial thickness and echogenicity (whether the endometrium is uniform or non-uniform).

Efficacy of 3D power Doppler ultrasound with the IETA group criteria in diagnosing the cause of postmenopausal bleeding