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Fig. 1A. —37-year-old man who presented with bilateral leg edema for several years after bicycle crash but had normal findings on lymphoscintigraphy. Anterior lymphoscintigrams obtained 1 hr (A) and 3 hr (B) after injection of radionuclide show no abnormalities. Note that two main lymphatic trunks (closed arrows, A) in both calves and both thighs and ilioinguinal lymph nodes are symmetric. Artifacts (open arrows, A) related to scatter at injection sites in both feet are present. Cardiac, renal, and bladder uptake seen on B is due to free pertechnetate.