METHOD OF DIFFERENTIAL DIAGNOSIS OF SCHIZOPHRENIA AND MALIGNANT NEOPLASMS OF THE BRAIN Russian patent published in 2018 - IPC G01N33/49 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to diagnosis by examining a biological fluid using physical and chemical methods of investigation. Method of differential diagnosis of schizophrenia and malignant neoplasms of the brain includes clinical and laboratory examination of the patient and MRI, in this case, a sample of venous blood is examined by infrared spectroscopy, with a preliminary sample of venous blood being dried, the dry residue is ground and suspended in vaseline oil, IR spectroscopy is carried out in the spectral region 1,200–1,000 cm^-1, determine the height of the peaks of absorption bands with maxima at 1,160, 1,150, 1,140, 1,100, 1,040 cm^-1, peak-to-peak ratio is calculated with a maximum at 1,150 cm^-1 to the peak height with a maximum at 1,040 cm^-1, peak height with a maximum at 1,160 cm^-1 peak height with a maximum at 1,040 cm^-1, peak height with a maximum at 1,140 cm^-1 to the peak height with a maximum at 1,100 cm^-1 and at a ratio of 1,150/1,040, equal to 1.80±0.10, a ratio of 1,160/1,040, equal to 1.30±0.10, a ratio of 1,140/1,100, equal to 4.10±0.15, schizophrenia is diagnosed.

EFFECT: method for differential diagnosis of schizophrenia and malignant neoplasms of the brain is proposed.

1 cl, 1 tbl, 5 ex