A method and apparatus of generating a modified segmented structure is disclosed. This adds voxels in proximity to a segmented structure to create a larger volume or area than the segmented structure. Analysis of these layers provides insight to the disease pathology of the segmented structure. Additionally, this layer can serve as a visual transition region between a segmented item on a checklist under inspection whose visual appearance is optimized and the remaining structures on the checklist whose visual appearance is subdued (e.g., darkened) to help the imager (e.g., radiologist) better focus on the image.