Rosenthal D, Fretzin D F
Pediatr Dermatol. 1986 Dec;3(6):455-8. doi: 10.1111/j.1525-1470.1986.tb00650.x.
A 16-year-old boy with an extensive epidermal nevus and mild scoliosis had a transitional cell carcinoma of the bladder. The association of the epidermal nevus syndrome with a variety of other tumors and the rarity of bladder carcinoma in children may make the association more than coincidental.