MEF2C/SS18 Fusion Gene

**Semantic type:** Gene or Genome

**Definition:** A fusion gene that results from a chromosomal rearrangement involving the long arms of chromosomes 5 (5q) and 18 (18q) that fuses the first 7 or 10 exons of the MEF2C gene upstream of either exon 4 or 5 of the SS18 gene, respectively. This fusion is associated with salivary gland microsecretory adenocarcinoma.

**Synonyms:** - MEF2C-SS18 Fusion Gene - MEF2C::SS18 Fusion Gene