Test name
EGFR. Sequencing of the exons 18, 19, 20 and 21
Purpose of the test
This is a clinical test intended for : Diagnosis
Condition
1 condition tested.
Lung cancer
Methodology
Molecular Genetics
Sequence analysis of select exons
Bi-directional Sanger Sequence Analysis
Test services
Clinical Testing/Confirmation of Mutations Identified Previously
Clinical summary
Lung cancer is the leading cause of cancer deaths in the U.S. and worldwide. The 2 major forms of lung cancer are nonsmall cell lung cancer and small cell lung cancer (see 182280), which account for 85% and 15% of all lung cancers, respectively. Nonsmall cell lung cancer can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. Cigarette smoking causes all types of lung cancer, but it is most strongly linked with small cell lung cancer and squamous cell carcinoma. Adenocarcinoma is the most common type in patients who have never smoked. Nonsmall cell lung cancer is often diagnosed at an advanced stage and has a poor prognosis (summary by Herbst et al., 2008).
Clinical features
Alveolar cell carcinoma
Conditions tested
Condition/Phenotype | Also known as | Identifier |
Lung cancer | Lung cancer, somatic | IM:211980, C0684249 |
Target population
Individuals with clinical symptoms consistent with disorder/disease
Analytical Validity
For Sanger sequencing, according our cumulative experience and proficiency tests, the error rate is less than 0.01% (99.99% accuracy)