NRAS Exon 4 Mutation Negative

**Semantic type:** Laboratory or Test Result

**Definition:** A genetic finding indicating that NRAS exon 4 gene mutations have not been detected in a sample.

**Synonyms:** - N-RAS Exon 4 Mutation Negative - NRAS Exon 4 Gene Mutation Negative - NRAS Proto-Oncogene, GTPase Exon 4 Mutation Negative - Neuroblastoma RAS Viral Oncogene Homolog Exon 4 Mutation Negative