However, ETV6-NTRK3 rearrangement is not unique to SCA because it is also found in other neoplasms, such as congenital fibrosarcoma, cellular or mixed mesoblastic nephroma, myeloid leukemia, or well-differentiated papillary thyroid carcinoma [178]. The gene discussed is NTRK3; the disease is autosomal dominant cerebellar ataxia.