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A 58-year-old Japanese woman with fever and cough visited A hospital. Her chest X-ray and CT showed a tumor attached to the mediastinum in the left upper lobe with mediastinal lymphadenopathy (#4R). After an introduction from A hospital to our hospital, endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) for the mediastinal lymphadenopathy and a simultaneous approach to the mass lesion in the left upper lobe were performed. In spite of twice aspiration by EBUS-TBNA for mediastinal lymphadenopathy, we failed to obtain enough specimens, and, as the mass lesion in the left upper lobe was invisible in the endobronchial ultrasound, we could not approach it. Then using the same ultrasound bronchoscope, we subsequently performed a transesophageal endoscopic ultrasound with bronchoscope-guided fine needle aspiration (EUS-B-FNA) to the mass lesion in the left upper lobe twice, with the result that sufficient tissues were obtained. Then we changed from the ultrasound bronchoscope to a normal bronchoscope and we performed brushing and transbronchial lung biopsy for the left upper lobe mass lesion. Pathological results revealed that only the specimens obtained by EUS-B-FNA were diagnostic for adenocarcinoma; the other specimens obtained using EBUS-TBNA and normal bronchoscope failed to be diagnostic. EUS-B-FNA in combination with EBUS-TBNA has been recommended for the diagnosis of mediastinal and near-mediastinal lesions in the guidelines of the American College of Chest Physicians in 2013, but EUS-B-FNA has not been widely used in Japan. As shown in our present patient who was successfully diagnosed as having lung cancer by EUS-B-FNA alone, respiratory physicians should be aware of being skillful at performing EUS-B-FNA to accurately and effectively approach target lesions.

journal of uoeh

A Case of Left Upper Lobe Lung Cancer Successfully Diagnosed by Transesophageal Endoscopic Ultrasound with Bronchoscope-Guided Fine Needle Aspiration Alone