Investigation of choice for detection and characterization of interstitial lung disease is: (A) MRI, (B) Chest x-ray, (C) Venlaon perfusion scan, (D) High resoluon CT
Answer is D. High Resoluon CT (HRCT) is investigation of choice for interstitial lung disease as it can delineate the lung parenchyma upto the level of secondary pulmonary lobule.