FIELD: medicine.
SUBSTANCE: method involves applying X-ray tomography to examine retroperitoneal space organs, measuring distance between anterior and posterior walls of formation visualized in renal vein projection on a series of axial tomograms and assessing tumor lesion focus from the data. The measured distance is divided by two and renal pedicle deviation angle is measured between imaginary lines one of which passes through the middle of the body and through the middle of the vertebral body and the other one crosses the middle of the renal pedicle. The so determined neoplasm width being greater than 10 mm, when divided by 2, and renal pedicle deviation angle being greater than 55°, local tumor proliferation into the renal vein or regional lymph nodes is to be diagnosed.
EFFECT: high accuracy of diagnosis.
2 tbl
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