Complete surgical resection of retroperitoneal leiomyosarcoma in pregnancy: a case report.

Retroperitoneal soft tissue sarcoma (RPS) is extremely rare in pregnancy, so there has been little experience in dialing with this condition. We report our experience of a pregnant patient with a retroperitoneal soft tissue sarcoma, which was treated by complete surgical resection at 17 weeks gestation. After regular follow-up, the patient admitted to our hospital in labor, in the 38th gestational week and vaginally delivered a male fetus weighing 3,200 g with Apgar score of 8 and 10 at 1 and 5 min respectively. Adjuvant radiotherapy and chemotherapy is controversial in RPS and due to postoperative continuation of pregnancy in our case, the adjuvant therapy was not practiced. The patient had an uneventful recovery, and no recurrence was detected for 20 months in the follow-up period.