Lymph node identification in carcinoma of the colon and rectum. Value of tissue specimen radiography.

A method for identifying lymph nodes in tissue specimens from patients with carcinoma of the colon and rectum by soft X-rays is described and assessed. The method seems superior to more time-consuming and possibly tissue-damaging procedures, and it affords a possibility of identifying lymph nodes down to a size 1--2 mm in formalin-fixed as well as in non-fixed tissue specimens.