MYCN amplification study (… AM-plih-fih-KAY-shun STUH-dee)
A laboratory test in which tumor or bone marrow cells are checked to see how many copies of the MYCN gene are in the DNA. MYCN is important for cell growth. Having more than 10 copies of the gene is called MYCN amplification. Neuroblastoma with MYCN amplification is more likely to spread in the body and less likely to respond to treatment.