FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely to endoscopy and can be used for diagnostics of neoplastic changes of digestive tract mucosa. For this purpose endoscopic examination of mucosa is performed in accordance with the standard methods. Localisation and spread of altered mucosa sections are visually determined. After that, non-fluorescent dye is applied on said mucosa sections. Then, spectrophotometric examination is carried out. Indigo carmine is used at wavelength of laser irradiation 532 nm, indigo carmine or Congo red is used if examination is performed at wavelength 632 nm.
EFFECT: method makes it possible to carry out spectrophotometric examination in limited zone of isolated section of pathologically changed mucosa due to application of certain dyes, which do not distort endogenic fluorescence, which in its turn, increases accuracy of spectrophotometric measurements and reliability of diagnostics.
3 cl, 1 ex
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