Three-dimensional power Doppler ultrasound diagnosis and conservative treatment of ectopic pregnancy in a cesarean section scar.

Objective: To describe three-dimensional ultrasonographic features of an ectopic pregnancy in a cesarean scar.

Methods: Description of a case. Methods: Case report of one patient. Methods: A 38-year-old women with three previous cesarean deliveries. Methods: Three-dimensional ultrasonography was performed for diagnosis and treatment. Methods: Local administration of methotrexate under ultrasonographic guidance.

Results: Ultrasonographic study revealed a gestational sac in the anterior wall of the uterine isthmus with peritrophoblastic flow. It was treated conservatively and successfully with local methotrexate administration under ultrasonographic guidance.

Conclusions: The early diagnosis of ectopic cesarean scar pregnancy allows the conservative treatment with local administration of methotrexate under ultrasonographic guidance.