Normally endometrial carcinoma presents with post-menopausal bleeding in the majority of cases. It
rarely presents with haematometra. If it does, it rarely reaches the term pregnant uterus size. This case
report is a rare presentation of endometrial carcinoma which was at first diagnosed as a huge ovarian
mass later found out to be haematometra intraoperatively. There was a discordant finding between the
endometrial invasions with distant metastasis (Local invasion of stage 1A with lung metastasis which
should be stage 4B). It is an uncommon combined occurrence but at least we learnt there can be possible
different presentation for endometrial cancer. It further proved that almost all of haematometra can turn
out to be associated with endometrial carcinoma.