What is the cause of Ewings sarcoma ?
The cause of Ewing’s sarcoma / pPNET remains unknown. In young people, the development of the tumour appears to be in some way related to periods in life with rapid growth, hence the average for tumour development is 14-15 years. The relationship to growth may also be part of the explanation why Ewing’s sarcoma is slightly more common in boys than in girls. However, Ewing’s sarcoma remains an extremely rare tumour in all groups of the population, and there is no extra cause for concern in rapidly growing teenagers.