Diagnosis of FGFR2 mutations typically involves genetic testing and molecular profiling of tumor samples. Techniques such as Next-Generation Sequencing (NGS), Polymerase Chain Reaction (PCR), and Fluorescence In Situ Hybridization (FISH) are commonly used to identify specific mutations within the FGFR2 gene. These diagnostic tools help in determining the presence and type of mutation, which can guide treatment decisions.
