The purpose of this report is to present a very unusual malignant tumor of childhood. Gross states: "The extreme rarity of hypernephroma in childhood makes it rather superfluous to consider the lesion in a differential diagnosis." 1 In reviewing the literature there are only 28 cases reported in infancy and childhood. We have not found one single case report in the American pediatric literature.2-7
Report of a Case
A 10-year-old Negro girl entered Mount Sinai Hospital on March 17, 1961, with a chief complaint of "vaginal bleeding." She was apparently in good health until 2 days prior to admission, when she noticed spotting of her underclothes. Subsequently she was noted to have urgency and frequency. A catheterized specimen of urine in the emergency room was grossly bloody.Two weeks prior to admission there was a history of trauma to the right side sustained when the patient ran into a