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Fig. 1C —Four cases of lymphedema: two primary and two secondary. 43-year-old woman with history of cervical cancer and secondary lymphedema related to pelvic and inguinal lymph node extirpation. Frontal 3D spoiled gradient-echo high-resolution MR lymphangiography image of left lower leg, obtained 35 minutes after gadodiamide injection, reveals delayed lymphatic flow with reticular pattern of dilated lymphatic vessels indicating neovascularization related to obstruction. Furthermore, dermal backflow (arrowhead) is detected. Note concomitantly enhanced vein (arrow), which shows lower signal intensity.