Extrauterine choriocarcinoma of the greater omentum after tubal pregnancy: case report

Abstract

Extrauterine choriocarcinoma is a rare form of gestational trophoblastic tumor. Extrauterine choriocarcinoma of the greater omentum is extremely rare in the literature. A 24-year-old female with irregular vaginal bleeding, mimicking as ectopic pregnancy, underwent emergency exploratory laparotomy and local excision of the greater omentum mass. The serum beta-human chorionic gonadotropin level decreased rapidly after operation; however, it rose up again before long. Pathology showed choriocarcinoma in the greater omentum. No evidence showed lesions on uterus. No other metastasis was found. Multiple courses of combined chemotherapy were effective for this case. Surgical excision and combined chemotherapy were effective for extrauterine choriocarcinoma of the greater omentum.

Uterine Gestational Choriocarcinoma Developing After a Long Latent Period in a Postmenopausal Woman: The Value of DNA Polymorphism Studies

“…Between 1973 and 1999, 450 cases were recorded in the medical literature, 1 nearly all arising within the uterine corpus but occasionally at other sites in the female genital tract such as the ovary, 2 cervix, 3 or omentum. 4 Extrauterine cases arise from an ectopic pregnancy. 5 Gestational choriocarcinoma complicates 1 in 20 000 to 1 in 25 000 pregnancies in Western countries 6 and usually arises from a prior molar pregnancy or sometimes from a nonmolar gestation.…”