Abdominal cystic lymphangioma in a woman at 14 weeks' gestation: case report.

Lymphangiomas are uncommon benign tumors that most commonly present early in life, and are even more exceptional in adults. We present a rare case of a 14-week pregnant woman who had a large septated cystic lesion adherent to the ileum. Despite analysis by ultrasound, the correct diagnosis was established only via laparotomy and she had surgical resection of an abdominal lymphangioma.