A bronchoscopy can be considered if the CT says about any bronchial cut off which means the lesion could be visible through doing a scopy from where a biopsy can be taken. If it is a peripheral lesion on the CT a per cutaneous biopsy can also be tried. A bronchoscopy is not always mandatory, it all depends from patient to patient. Either way, the ultimate goal is to get a diagnosis with or without a bronchoscopy.
Next Steps
Consult a pulmonologist with the patient and the CT imaging so that a prompt decision can be taken.