### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My father; 68 years old is having lung cancer.The pet scan results are as follows1)No metabollically active recurrent primary colorectal malignacy2)Multiple FDG avid right cervical mediastinal lymphnodal deposits seen3)Presence of FDG avid metastatic bilateral lung nodules4)FDG avid soft tissue mass in right lung lower lobe. New primary (bronchogenic) carcinoma with mediastinal invasion. Warrants histopathology correlation.He has imdergone 3 cycles of chemo with the following medicensIrinotecan 180mg, Leucovorin 400mg, Fluorouracil 400mg, Fluorouracil 2400-3000mgAND currently 1 cycle of chemo with the above + Bevacizumab 5mg I need to know if the treatment that is being undergone is effective or not? What next should be done? How fast will he recover as is having severe cough and at times also spit blood along with sputum? Will he recover from cancer?

### output:

Hello dear. I have gone through the details. In my opinion he is getting the right treatment. More over certain more molecular test(mutation analysis) needs to be done on biopsy tissue to know what kind of 2nd line Chat Doctor.  So after 4 cycles of this regimen, your father will require again PET CT scan to know the progress, if doing well then same will be continued for another 2 cycles. Even after that still more treatment is there. Recovery will be slow as he is having high disease load. However, as this is a last stage disease, there will be only prolongation of life and complete cure is not possible. Hope I have made you clear. Take care