Warts Warts on the skin are harmless growths. They are caused by a virus. Learn more about this condition.
White Matter Injury White matter injury (WMI), one of the most common consequences of premature birth, can produce long-term neurodevelopmental deficits. Learn more about this condition.
Wilms Tumor and Kidney Tumors Wilms tumor, also called nephroblastoma, is a malignant (cancerous) tumor originating in the cells of the kidney. It is the most common type of renal (kidney) cancer in children and accounts for about 5% of all childhood cancers.