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Fig. 1D Four cases of lymphedema: two primary and two secondary.
79-year-old woman with history of malignant melanoma and secondary lymphedema
related to inguinal lymph node extirpation and radiation. Frontal 3D spoiled
gradient-echo high-resolution MR lymphangiography sequence, obtained 35
minutes after gadodiamide injection, reveals delayed lymphatic flow with
extensive reticular pattern of dilated lymphatic vessels, indicating
neovascularization related to obstruction.