A method for the differential diagnosis of solid, cystic, and vascular tumors of the soft tissues of the limbs comprises the digital ultrasonic scanning of the soft tissues of the limb in the mode of color Dopplerographic mapping in three mutually perpendicular planes at the depth to . The presence or absence of blood flow is assessed, the diameter of the blood vessels, and the size of the cysts are measured. When the blood flow in the tumor is detected, the flow rate and direction are assessed, then the tourniquet is applied proximally to the pathological structure and the tumor is scanned in 2-3 minutes thereafter. The increment in diameter of blood vessels and size of the cyst is measured. The size of the tumor and the cysts, the diameter of the blood vessels are assessed with tourniquet and after its removal. When the measured parameters with tourniquet and after its removal are different, the vascular tumor is diagnosed. When these parameters are similar, the solid or cystic tumor is suggested.
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