Radiographic Studies of the Lymphatic System

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Abstract
The radiologic visualization of clinically undetectable lymph nodes and of lymph channels has been successfully accomplished by the injection of contrast media directly into a palpable lymph node. This technique of lymphadenography appears to be a safe and simple method of effecting such visualization. The procedure was developed during an attempt to evaluate the relative merits of early extensive radiotherapy of localized lymphomas. It seemed desirable to be able to classify more accurately than heretofore those cases which could truly be considered "localized." This is of particular importance when the inguinal and femoral areas are believed to be the only sites involved, since there has been no good method available for delineating enlarged pelvic and lumbar lymph nodes. Materials and Methods In the initial studies several varieties of contrast media were used. Water-soluble preparations were found to be of little value, since they were readily absorbed and did not produce

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