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  • Title: Lymph drainage originating from the lower esophagus and gastric cardia as measured by radioisotope uptake in the regional lymph nodes following lymphoscintigraphy.
    Author: Aikou T, Natugoe S, Tenabe G, Baba M, Shimazu H.
    Journal: Lymphology; 1987 Sep; 20(3):145-51. PubMed ID: 3682938.
    Abstract:
    Lymph drainage originating from the lower esophagus and gastric cardia was determined using uptake of radioisotope (RI) in the regional lymph nodes in 19 patients with primary cancer at these sites. On the day prior to operation, 99m Tc colloid solution was injected submucosally in the distal esophagus or gastric cardia during endoscopy. The regional lymph nodes were removed at operation and RI uptake of individual nodes was measured in a well-type scintillation counter. Uptake was expressed as the amount per nodal weight. After radioactive colloid was injected into the lower esophagus, high RI uptake was common in both the mid-mediastinal and abdominal nodes, suggesting that lymph originating from the lower esophagus drains in both a superior and inferior direction. On the other hand, after radioactive colloid was injected into the gastric cardia, high RI uptake was never demonstrated in mediastinal lymph nodes suggesting that direct mediastinal lymph flow from the gastric cardia is rare. These results support clinical observations on the distribution of lymph nodal metastases in patients with lower esophageal and gastric cardia malignancies. As a diagnostic tool for lymph nodal metastases, however, lymphoscintigraphy is unreliable.
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