At least atypical complex hyperplasia, suspicious for well differentiated adenocarcinoma.  I think if it isn't cancer yet, it is very close to cancer.  I wouldn't fight if somebody calls this adenocarcinoma directly. The clinical information is worrisome too.

This is a borderline case, no point to get a concensus.  Communication with your physician is very important.  If this is  endometrial biopsy, a curettage is certainly needed.  If this is a curettage, patient needs to be evaluated completely and treated.