Endometrial cancer and simultaneous pregnancy, an unusual combination. Case report.

Uterine cancer is the fourth most common cancer in women. Declining fertility, combined with increasing overweight and diabetes, might be some of the causes accountable for the rapid increase in the incidence of endometrial cancer (EC). Around 5% of EC are diagnosed in women aged under 40 years. We present a case of EC in a 36-year-old woman confirmed by hysteroscopy-directed biopsy, who became pregnant before receiving any primary treatment. She had no other significant medical or family history of interest. Image staging found a uterine-confined disease. The pregnancy had a normal course. The patient refused any type of treatment after delivery; thus, she was closely monitored every 3 months. No signs of disease recurrence were detected during the follow-up. Pregnancy may be possible with early EC and it might an effective treatment for the disease in this case. The pregnancy acts as treatment and the gestation could continue until term without complications, in this patient diagnosed with EC.