Capillary-venous malformation in the labia majora in a 12-year-old girl.

The case of a capillary-venous malformation in the labia majora of a 12-year-old girl is reported. The tumour increased in volume with puberty. The authors present a differential diagnosis between immature haemangioma and vascular malformation. The diagnosis is based on clinical examination, ultrasound, nuclear magnetic resonance, arteriography and gynaecological exploration. This malformation can be excised locally.