Clinicopathological characteristics and typing of multilocular cystic renal neoplasm of low malignant potential

Figure 1 A flow chart summarizing all the information in the study design. MCRNLMP: Multilocular cystic renal neoplasm of low malignant potential.

Figure 2 Three types of computed tomography imaging of 1520 patients afflicted with renal cystic disease. A: Computed tomography (CT) imaging manifestations of a simple renal cyst in the left kidney, Bosniak grade I, with clear and smooth borders, uniform simple fluid density (0-20 HU), and no separation or calcification; B: CT imaging manifestations of a complex renal cyst in both kidneys, Bosniak grade II, with compartmental enhancement and irregularities; C: CT imaging manifestations of a renal cyst in the left kidney with a tumor in the right kidney, and the cyst is of Bosniak grade II, with clear boundaries, uniform high-density signals, and without enhancement.

Figure 3 The operative specimens and histopathology of multilocular cystic renal neoplasm of low malignant potential. A: The fresh operative specimens of multilocular cystic renal neoplasm of low malignant potential (MCRNLMP) postoperatively; B: Microscopic histopathologic observations of MCRNLMP (Hematoxylin-Eosin staining and counted under microscopy with 400-fold magnification), the tumor tissue is composed of cysts in different sizes, and the inner wall is covered with a single layer of clear cells.