Urine catecholamine level can be elevated in pre-clinical<unk> . Screening asymptomatic infants at three weeks, six months, and one year has been performed in Japan, Canada, Austria and Germany since the 1980s. Japan began screening six-month-olds for<unk>  via analysis of the levels of homovanillic acid and vanilmandelic acid in 1984. Screening was halted in 2004 after studies in Canada and Germany showed no reduction in deaths due to<unk> , but rather caused an increase in diagnoses that would have disappeared without treatment, subjecting those infants to unnecessary surgery and chemotherapy.
Neuroblastoma
Ewing's sarcoma
Central neurocytoma
Astroblastoma
Neurothekeoma
Germinoma
Sialoblastoma
Neuroma