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Fig. 4C. —55-year-old diabetic woman with necrosis of first and second toes and surgically confirmed abscess below first metatarsal head. Contrast-enhanced, fat-suppressed fast multiplanar spoiled gradient-recalled echo (FMPSPGR) MR image (250/2.1; flip angle, 90°) reveals large area of nonenhancement around first metatarsal head, with distinct border (arrow) caused by adjacent contrast enhancement. On dorsum of foot, nonenhancing tissue extends over second metatarsal shaft (arrowhead), corresponding to clinically observed extension of gangrene. Typical ring enhancement indicating abscess is absent.