The ultrasound pattern of hepatic and renal changes after different types of resection is depicted. Ultrasound studies were performed in 335 patients operated on for focal hepatic masses and in 72 patients operated on for focal renal masses. The authors identified 3 patient groups after hepatic resection (segment-oriented liver resection (99 patients), portal hemihepatectomy (n=163), and extended hemihepatectomy (n=73)) and 3 patient groups after renal resection (planar (n = 83), wedge (n = 104), and frontal (n = 66)). It has been established that the number and location of hepatic veins in the liver stump, which the authors have designated as a hepatic vein rule, are of basic value in defining the type of hepatic resection. To determine the type of renal resection, it is essential to assess the shape of the organ and the area of its resection. The found echosemiotic patterns allow the type of performed resection of parenchymatous organs to be correctly determined in the majority of cases.