by Radiological Society of North America Airway changes in a 66-year-old male marijuana and tobacco smoker with cylindrical bronchiectasis and bronchial wall thickening (arrowheads) in multiple lung lobes in a background of paraseptal and centrilobular emphysema. Credit: RSNA/Radiology Smoking marijuana in combination with cigarettes may lead to increased damage of the lung’s air sacs, according to...