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Fig. 3B. —67-year-old man with adenocarcinoma in left lower lobe. CT scan obtained 10 days later during coaxial core needle biopsy, with patient in approximately 40° ipsilateral dependent position, shows tip of guiding cannula at surface of lesion; guiding cannula may or may not have crossed parietal pleura. Multiple passes yielded diagnostic material without complications. Although oblique rather than 90° ipsilateral dependent position was necessary to approach this posterolateral lesion, dependent lung remained hypoinflated and partially immobilized.