Recurrent ectopic pregnancy in a cesarean scar

Area of Science:

• Reproductive Medicine
• Obstetrics and Gynecology
• Diagnostic Imaging

Background:

• Cesarean scar ectopic pregnancy is a rare but serious complication following cesarean delivery.
• Risk factors include prior uterine surgery, infection, and short intervals between pregnancies.
• Early recognition is crucial to prevent uterine rupture and severe hemorrhage.

Observation:

• A patient with a history of cesarean scar ectopic pregnancy presented with a suspected recurrence at 4 6/7 weeks gestation.
• Initial ultrasound findings were suspicious for cesarean scar ectopic pregnancy.
• Diagnosis was confirmed via repeat ultrasonography at 6 weeks gestation.

Findings:

• The recurrent cesarean scar ectopic pregnancy was successfully treated with methotrexate.
• The pregnancy resolved without any complications.
• Serial ultrasound examinations are recommended if the diagnosis is uncertain.

Implications:

• Cesarean scar ectopic pregnancy should be considered in women with prior cesarean deliveries and early ultrasound findings of a thin lower uterine segment or low implantation.
• Treatment can be medical (e.g., methotrexate) or surgical, depending on the clinical scenario.
• Prompt diagnosis and management are vital for patient safety and preventing catastrophic outcomes.