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Published on: July 6, 2022
Five-year recurrence pattern of mature cystic teratoma according to operation type in young women
Chan-Hong Park1, Soo-Min Kim1, Sung Eun Kim1
1Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Objective:
To find cumulative recurrence rate and risk factors for recurrence in young women with mature cystic teratoma (MCT).
Methods:
Patients aged 10-29 years with MCT confirmed by their first ovarian surgery between 2000 and 2018 were included in the study. To rule out residual lesions, only patients with no MCT-suspected lesions on imaging within 1 year after surgery were included in the study. Patients who had not undergone imaging tests from 1 year after surgery or had other findings on biopsy were excluded.
Results:
The present study included 372 (84.2%) patients with cystectomy and 70 (15.8%) patients with oophorectomy. The 5-year cumulative recurrence rates for each patient group were 11.2% and 20.3%, respectively. The hazard rate of recurrence was higher in the oophorectomy group than the cystectomy group within 5 years after surgery. Large tumor size (hazard ratio [HR] 2.59; 95% confidence interval [CI] 1.11-6.08) and bilaterality (HR 2.65; 95% CI 1.27-5.52) were significant predictors of recurrence in the cystectomy group.
Conclusion:
The 5-year cumulative recurrence rate after surgery in young women with ovarian MCT was 11.2% in the cystectomy group and 20.3% in the oophorectomy group. Risk factors for recurrence after cystectomy were large tumor size and bilaterality.
