Polyposis of the gallbladder associated with metachromatic leukodystrophy.

We report on two children with metachromatic leukodystrophy and polyposis of the gallbladder. In both patients ultrasound examination revealed a small gallbladder with a thickened echogenic wall and multiple polypoid masses. In one patient diagnosis of gallbladder polyposis was made 6 months before the first neurological symptoms occurred. As gallbladder polyposis is a rare phenomenon in childhood, metachromatic leukodystrophy should be excluded.