KRAS Exon 4 Mutation Negative

**Semantic type:** Laboratory or Test Result

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

**Synonyms:** - KRAS Exon 4 Gene Mutation Negative - KRAS Proto-Oncogene, GTPase Exon 4 Mutation Negative - KRAS-2 Exon 4 Mutation Negative - KRAS2 Exon 4 Mutation Negative - c-K-ras Exon 4 Mutation Negative - v-Ki-ras2 Kirsten Rat Sarcoma Viral Oncogene Homolog Exon 4 Mutation Negative