Other common recurrence sites are the pelvic lymph nodes , para-aortic lymph nodes , peritoneum ( 28 % of recurrences ) , and lungs , though recurrences can also occur in the brain , liver , adrenal glands , bones , lymph nodes outside the abdomen , abdominal organs , and muscle.
Between 0.4 and 1 % of endometrial cancer cases occur on the lymph nodes outside the abdomen .