Prenatal sonographic appearances of Klippel-Trenaunay-Weber syndrome

A case of prenatal Klippel-Trenaunay-Weber syndrome is presented, with a de scription of the sonographically observed disease progression in utero. The appearance of a complex thoracic multicystic mass in association with prog ressive unilateral lower limb enlargement was strongly suspicious of this d isorder. Colour-flow Doppler studies of the cutaneous haemangiomata in uter o were not of diagnostic assistance in this case. The prenatal detection of the large cutaneous haemangiomata was of critical importance in minimizing delivery trauma for the mother and fetus. Copyright (C) 1999 John Wiley & Sons, Ltd.