A computer-implemented method for visualizing a tumor in a volume data includes providing a plurality of tumors, detected and segmented from the volume data, storing locations of a plurality of voxels corresponding to each of the plurality of tumors, and determining a mesh of surface voxels for each of the plurality of tumors from the stored locations. The method further includes rendering the meshes for each of the plurality of tumors in a volume rendering window, selecting a tumor of interest from the plurality of tumors rendered in the volume rendering window, and determining a correspondence of the selected tumor to a slice of the volume data, wherein the slice of the volume data is displayed in a main window.