Riess case 3:
68-year-old woman undergoing plasma testing for EGFR T790M Mutation.
- The patient is a 68-year-old woman previously diagnosed with adenocarcinoma
- She later developed growth of her primary tumor and several pulmonary nodules.
- She complained of shortness of breath
- Biopsy tissue was insufficient for mutation testing; plasma testing showed the presence of T790M
- After being switched to osimertinib, the patient has sustained disease control