
Nicholas J. Talley , Kenneth R. Devault, Michael B. Wallace, Bashar A. Aqel, Keith D. Lindor
A round hypoechoic lymph node is identified in the mediastinum above the aortic arch in a patient with adenocarcinoma of the distal esophagus. The needle is seen to penetrate the lymph node and an aspirate is taken for cytology, which was positive for adenocarcinoma.