Conclusion
ALK protein expression evaluated on FNA cell blocks was found to be useful in risk stratification in addition to the traditional parameters of age, stage (INSS), morphology (INPC), and risk group (INRG). Cell scrapes are suitable for NGS and the F1174L ALK gene mutation confers a poor prognosis in neuroblastoma.
Conflict of Interest StatementAll authors hereby declare that they have No conflict of interests.