Abstract
Objective: to increase the effectiveness of treatment of oncological diseases of the gastrointestinal tract by increasing the informative value of establishing the necessary volume of the surgical operation.
 Material and methods. In the high-frequency electric field visualization of the glow of 82 biopsy specimens of the large intestine taken for histological analysis was performed to solve the question of the scope of the operative intervention.
 Results. There was an edge luminescence in all biopsy materials in the high-frequency, while there was internal luminescence in the biopsy of a cancerous tumor. The glow covered the entire cancerous growth. By biopsy glow in the high-frequency electric field, in comparison with the endoscopy data, there were discrepancies in the diagnosis, in particular, internal glow observed in 2 patients with the initial diagnosis of "diverticulum", in 2 patients with the diagnosis of "villous tumor", 6 patients with a diagnosis of "polyp", which indicated the presence of a malignant tumor. Histological analysis confirmed this and the primary volume of the surgical operation was changed for these patients.
 The conclusion. The given data of visualization of luminescence of biopsy specimens can be the basis for creating an endoscopic express diagnostic method and increasing the informative value of establishing the necessary volume of a surgical operation.
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