[The present approach to the morphologic analysis of lymph nodes draining a tumor area]

The paper reviews the results of an extensive morphological analysis of 49 lymph nodes draining the area of histologically evidenced tumor on the basis of immunomorphological changes by the quantitative and semiquantitative methods. Reactive changes in different topographic zones being a morphological manifestation of the immune response to the presence of tumor depend on the type and localization of the tumor. Sinus histiocytosis is the most significant morphological reaction in the analyzed draining nodes. The intensity of sinus histiocytosis could, by itself, represent an important factor in a morphological recognition of the lymph node draining the tumor area.