Benign Mediastinal Lesions

Benign Mediastinal Lesions

M. Babitha Reddy1, David H. Robbins1, and Mohamad A. Eloubeidi2

1 Lenox Hill Hospital, New York, NY, USA

2 American University of Beirut School of Medicine, Beirut, Lebanon

Benign mediastinal lymphadenopathy is a common incidental finding during endoscopic ultrasound (EUS) (Figures 12.112.5). Benign enlarged mediastinal lymph nodes can be reactive lymph nodes from exposure to a pulmonary infection, or granulomatous lymph nodes from sarcoid, histoplasmosis, or tuberculosis. Echogenic features include a crescent or triangular shape. Sometimes there is a central hyperechoic strand suggestive of a blood vessel. The borders are irregular and the short axis is often less than 1 cm. There are often multiple lymph nodes. It is not uncommon to encounter the benign “draping” subcarinal lymph node, which can be ovoid, intermediate in echogenicity, and up to 2 cm in length.

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Nov 28, 2021 | Posted by in ULTRASONOGRAPHY | Comments Off on Benign Mediastinal Lesions
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