Modern sequencing can identify millions of DNA variants in one person, but only a small proportion contribute directly to disease. The central challenge is determining which findings are clinically meaningful and how they should influence care.

A Clinical Medical Genetics Consultation evaluates whether a condition may have a genetic basis and how genomic information could improve diagnosis, treatment, prevention and long-term management. The assessment integrates phenotype, a three-generation family history, inheritance patterns, imaging, laboratory findings and accepted variant-interpretation standards.1

This approach is especially important when disorders have nonspecific or overlapping features, as occurs in neurological disease, hereditary cancer, cardiomyopathy, chronic kidney disease, developmental disorders, epilepsy and many rare syndromes.

A molecular diagnosis can alter medication choice, surveillance, surgical decisions, eligibility for targeted therapy, reproductive counselling and testing for relatives. Multidisciplinary review of exome results has demonstrated meaningful diagnostic value in patients who had remained without an explanation after extensive evaluation.2

Genomic interpretation is dynamic. New gene–disease relationships and evidence may change the classification of a previously uncertain variant, so periodic reinterpretation can provide additional diagnoses over time.3

Clinical Medical Genetics is therefore the clinical interface between genomic science and patient care, supporting precision diagnosis, individualized management, prevention and family risk assessment.

Clinical value

  • Establish a molecular diagnosis for unexplained or complex disease
  • Reduce unnecessary investigations and shorten the diagnostic odyssey
  • Identify treatment, surveillance and clinical-trial opportunities
  • Assess risks for relatives and support reproductive planning
  • Enable evidence-based reinterpretation as knowledge develops