Which of the following modality is most sensitive investigation for pneumothorax?: (A) USG, (B) CT, (C) X-ray, (D) MRI
Answer is B. Pneumothorax: Refers to the presence of gas (air) in the pleural space. When this collection of gas is constantly enlarging with resulting compression of mediastinal structures, it can be life-threatening and is known as a tension pneumothorax. Provided lung windows are examined, a pneumothorax is very easily identified on CT, and should pose essentially no diagnostic difficulty. - IOC- CT Scan - Best X-ray view- Expiratory Films