A therapeutic pad system is disclosed for the treatment of edema, wherein the pressure applied to the user by the pad encourages the proximal flow of lymph. The device comprises a portable pump and a series of bladders transversely encircling the target appendage whether arm or leg that through. A first dielectric layer is formed over the semiconductor substrate including the trenches. A central part of the display region has any of a main PS structure in which only the columnar spacer is disposed, a sub PS structure in which only the columnar spacer is disposed, and the dual PS structure. One or more tissue-specific andor material-specific attenuation or density values are assigned to each pixel or voxel of the attenuation or density map based on the tissue andor material type identified as being in each pixel or voxel during the analysis of the MR data sets. In an alternate embodiment, the plunger may be rotated to a locked depressed position.