[The ultrasonic picture of hypernephromas]

For objective assessment of an ultrasound picture of the kidneys in tumors the authors compared the results of USI, angiography of the kidneys and the removed operative material. In 32 cases kidney tumors were hyperechogeneous, in 13 cases--medium echogeneous, and in 8 cases--hypoechogeneous. The authors detected no relationship between a degree of vascularization of the tumor and its echogeneous type. By their results hypernephromas can have a different echographic picture which may be determined by tumor macromorphology (the presence of necrosis, cystic cavities, etc.). Sizes of kidney tumors by USI findings were 10-15% less than true tumor sizes, and the determination of tumor borders based on USI findings, was rather difficult.