1. Evaluation of lymph node metastases in squamous cell carcinoma of the esophagus with positron emission tomography 
Kwhanmien Kim, MD, Seung Joon Park, MD, Byung-Tae Kim, MD, Kyung Soo Lee, MD, Young Mog Shim, MD 
The Annals of Thoracic Surgery 
Volume 71, Issue 1, Pages (January 2001)
DOI: /S (00)

2. Fig 1
Computed tomograms of the upper and mid thorax and the upper abdomen in 3 patients show no significantly enlarged lymph nodes. However, corresponding transaxial fluorodeoxyglucose positron emission tomography images demonstrate abnormal increased activities in regional lymph nodes that were positive for tumor on histopathology. (Top) right paratracheal lymph node; (middle) subcarinal lymph node; (bottom) left gastric artery lymph node.
The Annals of Thoracic Surgery  , DOI: ( /S (00) )

3. Fig 2
Fluorodeoxyglucose positron emission tomography (FDG PET) and computed tomograms of 61-year-old patient with upper esophageal cancer. FDG PET demonstrates abnormal increased activity in upper esophagus, bilateral hilar, and right intrapulmonic lymph nodes; however, those lymph nodes were confirmed negative for tumor by histopathology. In this patient, a computed tomogram shows stable pulmonary tuberculosis in the left upper lobe, suggesting that those might be lymph nodes reactive to tuberculosis.
The Annals of Thoracic Surgery  , DOI: ( /S (00) )