NLS device (such as 3D NLS and Bioplasm NLS) can be considered as an adequate method for diagnosis gastric and colonic cancers. The difficulties in dealing with NLS interpretation largely concern the initial phases were the frequency of diseases detection depends in the long run on any focal changes in the mucosa in the case of chronic gastritis and on keeping the patient under dynamic observation on the given modes of elimination and NLS analysis involved. The submitted results allow to segregate two principal variants of the diseases diagnosis.

    The result of diacrisis of gastric or colonic cancers indicate that for most patient the problem of early diagnosis can not be solved, not only because of certain organization factors but also and primarily because of the specific pattern of the disease process and its manifestation. However, the actual opportunities for improving the well-timed diseases diagnosis in practical public health conditions lie, primarily, in increasing the number of patients to be examined by means of the NLS-method within the framework of health survey and also in a timely and complete examination of the patients who are suspected to have the disease.