Imaging 
• CT or MRI scan of the abdomen and MRI scan of the pelvis are both useful for determining the extent of
  cancer in the pelvis, the presence of ovarian disease and the presence of involved pelvic and aortic lymph
  nodes and liver metastases.
• Chest x-ray. 

Endoscopy and Biopsy 
• The definitive diagnosis is made on an endometrial biopsy, which involves a small scraping of the uterus and is
  usually performed in the doctor's office. A dilation and curettage (D&C) is required for some women those
  who have biopsy-proven endometrial hyperplasia ( see Endometrial Cancer Precursors ), who
  have an insufficient specimen on an office biopsy or who can't have an endometrial biopsy done in the office
  because of a small cervical opening or discomfort.