ERBB2 Exon 20 Insertion Mutation

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A molecular genetic abnormality indicating the presence of an in-frame insertion mutation occurring within exon 20 of the ERBB2 gene.

**Synonyms:** - CD340 Exon 20 Insertion Mutation - Erb-B2 Receptor Tyrosine Kinase 2 Exon 20 Insertion Mutation - HER-2 Exon 20 Insertion Mutation - HER2 Exon 20 Insertion Mutation - HER2/Neu Exon 20 Insertion Mutation - Neu Exon 20 Insertion Mutation - c-erbB2 Exon 20 Insertion Mutation - v-Erb-B2 Avian Erythroblastic Leukemia Viral Oncogene Homolog 2 Exon 20 Insertion Mutation