December 2017 A 66-year-old Asian woman presents to her PCP complaining of visual disturbances, nausea, fatigue, and sporadic headaches History: HTN, managed on candesartan; hyperlipidemia managed on simvastatin; no smoking history PE: BP, 148/70; LLL auscultation reveals decreased breath sounds CBC: WNL Imaging studies: MRI of the head demonstrated a right parietal mass at the graywhite junction with vasogenic edema CT of chest, abdomen, and pelvis revealed a 3.4-cm mass in the left lower lobe, and several small liver nodules CT-guided transthoracic needle biopsy of the lung lesion showed grade 2 adenocarcinoma, acinar Molecular testing: EGFR exon 19 deletion Staging: T2aN0M1c ECOG 1 The patient was started on osimertinib 80 mg once daily