My father in law has been diagnosed with stage 4 lung cancer in 2017, and undergone 4 cycles of chemotherapy. After completion of chemotherapy he was on erlotinib for 2 years, in december 2019 due to breathing issue and persistent cough and tiredness, after egfr doctor put hum on osimeritinib, but now his cough increased and his breathing and fatigue issue is increased. And doctor suggested pet ct. Pet ct interpretation "metabolically active right lower lobe lesion with local infiltration as described, metabolically active left lung nodule suggests metastasis, metabolically active ground glass opacities in both lungs suggestive of ineffective inflammatory pathology, mild left plural and pericardial effusion as described, significant increase in size of right lower lobe lung lesion and left lung nodule, medistanial node appears necrotic now" as I could not find any option to attach reports therefore I am writing the interpretation of the report"