Klippel-Trenaunay-Weber syndrome presenting as massive lymphangiohemangioma of the thigh: prenatal diagnosis.

We report a case of Klippel-Trenaunay-Weber syndrome presenting prenatally as a massive congenital lymphangiohemangioma of the thigh. Routine ultrasonographic examination revealed multiple distorted cystic areas extending from the right flank through the right lower extremity of a 30-week fetus. A diagnosis of cystic lymphangioma of the thigh was suspected prenatally. Neonatal evaluation confirmed the prenatal findings. Neonatal color Doppler imaging revealed blood vessels within the tumor. The differential diagnosis is discussed together with available therapeutic procedures.

Cutaneous hemangioma of the thigh: prenatal diagnosis.

We report a case of cutaneous hemangioma of the thigh detected by prenatal ultrasound. A hypoechoic homogeneous mass, filled with low-density echoes, was visualized on the posterior aspect of the right thigh, close to the genital region, at 36 weeks. Low-velocity arterial flow was detected within the mass by color and pulsed Doppler and the diagnosis of cutaneous hemangioma was suspected. No other anomalies were detected and the pregnancy evolved uneventfully to term. The prognosis and management of this condition are discussed.

Prenatal diagnosis of bilateral proximal femoral hypoplasia.

Proximal femoral focal deficiency is a rare skeletal disorder, with an estimated incidence of 0.11 to 0.2/10,000 births. The bilateral form is uncommon, occurring in 10 to 15% of cases. We report a case of bilateral proximal femoral focal deficiency diagnosed by ultrasound at 30 weeks' gestation. Differential diagnosis, prognosis and management are discussed.