Fig. 1.

A 65-year-old male with end-stage renal disease (ESRD) and a long-term nonhealing ulcer of the right lower extremity. (A) Anterior and (B) posterior planar images demonstrate marked radiotracer uptake in the subcutaneous tissues of the lower extremities bilaterally, predominantly in the bilateral calves (arrows). There is faint activity in the diminutive bilateral kidneys (arrowheads) consistent with history of long-term renal failure. Incidental note of photopenia in the bilateral knees related to prior knee arthroplasties, and severe uptake in the left midfoot joints and to a lesser degree in the right midfoot joints secondary to degenerative changes.