INTRODUCTION: The objective of this study was to describe treatment outcomes in young women with endometrial hyperplasia. METHODS: A retrospective cohort study of women younger than 35 years with a biopsy diagnosis of endometrial hyperplasia was performed. Demographics, treatment, and histopathology were compared. The institutional review board at the University of Southern California approved this protocol. RESULTS: Two hundred twenty-three patients were identified: 70 atypical and 153 nonatypical endometrial hyperplasia. Mean age was 29.9±4.1 years, and mean body mass index was 40.1±10.5 kg/m2. There was no difference between groups in age, body mass index, gravidity, or parity. Women with atypical endometrial hyperplasia were more likely to have diabetes (25.7% compared with 13.7%, P=.037) and to have a thicker endometrium on ultrasound examination (15.2 mm compared with 12.1 mm, P=.03). Forty-six (20.6%) women had one biopsy and were lost to follow-up. For women managed nonsurgically, the median number of biopsies was four (range one to 22) and the mean follow-up was 24.1±23.3 months. The most common treatment was systemic progestin therapy (75.6%). Among women treated for nonatypical endometrial hyperplasia, the most recent biopsy was benign in 64 of 102 (62.7%), nonatypical in 24.5%, atypical in 11.8%, and cancer in 1.0%. Among women treated for atypical endometrial hyperplasia, the most recent biopsy was benign in 30 of 56 (53.6%), nonatypical in 19.6%, atypical in 17.9%, and cancer in 8.9%. CONCLUSIONS: After 2 years of treatment, nonatypical endometrial hyperplasia rarely progresses to cancer, but 11.8% progress to atypical endometrial hyperplasia. Atypical endometrial hyperplasia progresses to cancer in 8.9% of patients despite treatment. A high lost-to-follow-up rate highlights the need for aggressive counseling and outreach in this high-risk population.
Read full abstract