Mediastinal schwannomas are relatively rare; therefore, limited cases have been reported. Endoscopic ultrasound with bronchoscope-guided fine-needle aspiration (EUS-B-FNA) reportedly has a good diagnostic yield. An 87-year-old man with a chronic cough due to asthma was referred to our hospital with a mediastinal tumor adjacent to the trachea and esophagus. Magnetic resonance imaging revealed cystic lesions in the tumor, and the risk of complications was reduced by avoiding aspiration of the cystic lesions using endobronchial ultrasonography. EUS-B-FNA was performed under intravenous anesthesia. Histological examination of the obtained tissue revealed a mediastinal schwannoma.
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Takigawa et al. (2024) studied this question.
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