Pelvic masses after surgery for immature ovarian teratoma: A 10-year experience of Western China

Abstract

There are debates on the management of immature ovarian teratoma and its recurrence. This study aimed to report the incidence of pelvic masses after surgery for immature ovarian teratoma and to identify prognostic factors of disease-free survival after surgery, discussing aspects of primary treatment and postoperative management.Data on the diagnosis and treatment of patients with immature teratomas were collected. Follow-up data were acquired from clinic visits and telephone interviews. Disease-free survival was defined as the time interval between the initial surgery for immature ovarian teratoma and the diagnosis of a new pelvic mass. Survival curves were drawn using the Kaplan-Meire method, and multivariate analysis was performed using the Cox proportional hazard regression model using PASW statistics software.The estimated 5-year disease-free survival and overall survival were 74.3% (95%CI 63.9%-84.7%) and 96.5% (95%CI 91.6%-100.0%), respectively. The incidence of growing teratoma syndrome and immature teratoma relapse at a median follow-up of 46 months were 20.0% and 7.7%, respectively. Two patients died of repeated relapses or repeated growing teratoma syndrome. Rupture of initial lesions (RR 4.010, 95%CI 1.035-5.531), lymph node dissection (RR 0.212, 95%CI 0.051-0.887) and adjuvant chemotherapy (RR 0.143, 95%CI 0.024-0.845) were independent prognostic factors for disease-free survival.The development of growing teratoma syndrome is more prevalent than relapse after treatment of immature ovarian teratomas. Lymph node dissection and chemotherapy are recommended to reduce recurrence. Close surveillance and active surgical intervention are important for the diagnosis and appropriate management of new pelvic masses.

Peculiarities of differential diagnosis of malignant and benign ovarian tumors in girls (case report of immature teratoma of the ovary)

“…В качестве инструментальной диагностики при данной патологии используют ультразвуковое исследование (УЗИ), компьютерную томографию (КТ) и рентгенографию [7]. При КТ незрелые тератомы визуализируются как гетерогенные солидные или кистозные массы, как правило, с односторонней локализацией [3,18]. Солидные компоненты могут содержать фрагменты подкожно-жировой клетчатки, дериваты кожи и/или кальцинаты [3].…”

“…После оперативного вмешательства уровень АФП снижается [7]. Прогноз у пациентов, которым было проведено хирургическое лечение, благоприятный, оценочная 5-летняя общая выживаемость составляет, по данным разных авторов, от 70 до 96,5% [2,18,[20][21][22]. Частота рецидива незрелой тератомы при медиане наблюдения 46 мес составляет 7% [18].…”