There have been many reports of the association between hemihypertrophy and intraabdominal masses, including Wilms' tumor, hepatoma, and adrenal cortical neoplasias.1 The present report describes a patient with segmental hemihypertrophy, multiple ovarian cysts, and bilateral Wilms' tumor and suggests a screening regimen for patients with hemihypertrophy.


The patient was a 9 lb 14 oz product of a term pregnancy, who was well until a mass filling the entire right side of the abdomen was discovered on routine examination at 4 months of age. Intravenous pyelogram (IVP) confirmed a large prerenal mass which on ultrasound was felt to be an ovarian cyst.

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