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Fig. 7. —72-year-old man with secondary lymphedema in left leg after fall that injured leg several months earlier. Anterior spot lymphoscintigram of both calves obtained 3.5 hr after injection of radionuclide shows decreased number of lymphatic channels in left calf (large arrows), with associated dermal backflow (small arrows). K = level of knees, A = level of ankles, RT = right side, LT = left side.