Endoscopic Ultrasonography in the Evaluation of Posterior Mediastinal Lesions

作者: Wilson T. Kwong , Thomas J. Savides

DOI: 10.1016/B978-0-323-54723-9.00009-9

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摘要: Abstract Masses and lymphadenopathy of the posterior mediastinum are amenable to endoscopic ultrasonography-guided fine-needle aspiration (EUS FNA). The differential for lesions includes neoplastic including lung cancer, lymphoma, esophageal neurogenic tumors, leiomyomas, metastases from distant tumors. Nonneoplastic etiologies mediastinal lymph nodes masses include tuberculosis, histoplasmosis, sarcoidosis. EUS FNA has a high accuracy in distinguishing these different etiologies. Core biopsy needles provide method obtain larger biopsies architectural information distinguish lymphoma subtypes. Duplication cysts which can often be distinguished solid by presence acoustic enhancement. A potential complication is mediastinitis. safe procedure with low rate adverse events. Endobronchial ultrasound (EBUS) provides an alternative sampling lesions.

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