<prompt> Best imaging modality in bronehogenic carcinoma-CTMR!BronchoscopyNone  <response>: Ans. is a i.e., CTo CT scan is the investigation of choice for pulmonary malignancy except for superior sulcus or pancoast tumor, where MRI is the investigation of choice.Investigations of choice in respiratory systemDiseaseInvestigationo Intersitial lung diseaseo BronchiectasisHRCTHRCT 1st choiceBronchography 2nd choiceo Pulmonary embolismCT with i.v. Contrast 1st choiceVQ scan 2nd choiceo Solitary pulmonary noduleo Calcificationo Pulmonary malignancyo Superior sulcus or pancoast tumorCT scanCT scanCT scan except in superior sulcus or pancoast tumorMRI 