FIELD: medicine.
SUBSTANCE: invention refers to medicine, particularly to oncology and concerns sentinel lymph nodes (SLN) diagnostic methods in stomach cancer. A radiopharmaceutical is introduced by tumour perimetre in four points corresponding to four metastasis basins of stomach paratumorally immediately during operation. That is followed with SLN searching with using a digital gamma scanner herewith to determine radio-activity of a lymph node. If radioactivity of lymph node is three times higher than that of surrounding tissues, lymph node is considered to be sentinel.
EFFECT: method provides SLN detection immediately during operation that is necessary to evaluate the extent of lymphodissection, as well as in-operation control of so-called "jumping" metastasises with disordered metastasis.
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