102Lu Bulla Masquerading as PTX CXR of a 61yearold male with COPD and shows a lucency at the left base concerning for a loculated basal pneumothorax..CT scan shows basilar bullous lung disease, with only minimal centrilobular emphysematous changes in the upper lobesAshley Davidoff MD TheCommonVein.net61M-COPD-Bulla-base-false-neg-PTX-001b Basilar Bullous Lung Disease No Significant Centrilobular Emphysema in the Upper Lobes