Background: Vascular malformations are congenital abnormalities that do not spontaneously regress and may require surgical resection for treatment.
Case: A healthy 23-year-old woman presented with a painless, slowly enlarging mass of the mons pubis. Ultrasonography and magnetic resonance imaging demonstrated a cystic mass with minimal Doppler flow. The final pathology showed a combined lymphatic-venous vascular malformation. A meshed advancement flap was used to close the skin after surgical resection. These flaps create a lattice of small cutaneous defects that heal rapidly by secondary intention and optimize wound healing.
Conclusion: Lower genital tract vascular malformations are rare but often become symptomatic in adolescents or young women. Larger lesions may warrant surgical resection. Flap closures may aid in proper wound healing.