This report describes the prenatal sonographic diagnosis of a case of Klipp
el-Trenaunay-Weber syndrome. The sonographic appearance of this disorder wa
s characterized by the presence of multiple distorted cystic areas involvin
g the right leg and abdomen and cardiomegaly with early fetal heart failure
. Despite the prenatal detection of the extensive cutaneous and visceral in
volvement, the infant died soon after birth of high-output cardiac failure
and Ka-sabach-Merritt syndrome. (C) 2001 John Wiley & Sons, Inc.