Which element focuses on categorizing variants as pathogenic, likely pathogenic, VUS, benign?

• A. Indication
• B. Methods
• C. Variant interpretation
• D. Limitations

Answer: (C)

Variant interpretation is the process of assigning clinical significance to each genetic variant found in a test. The categories — pathogenic, likely pathogenic, variant of uncertain significance, benign, and likely benign — are determined through a structured evaluation of evidence, typically guided by ACMG/AMP criteria. This assessment combines population frequency, functional studies, computational predictions, segregation with disease in families, de novo status, and how well the variant’s presence matches the patient’s phenotype to judge how likely it is to cause disease. The other elements describe why the test is ordered, how it’s performed, and what the limitations are; they don’t themselves categorize variants. Understanding this helps clinicians interpret results and manage care, keeping in mind that a VUS may be reclassified later as new evidence emerges.