Erdheim-Chester Disease with No Skeletal Bone Involvement and Massive Weight Loss

Figure 3

(a) Axial contrast-enhanced CT image of the abdomen and pelvis at the level of the kidneys shows bilateral rind-like perirenal soft tissue infiltrations, giving the appearance of “hairy kidney” (arrowheads). Anterior abdominal wall infiltration is also seen (arrows). (b) Corresponding PET/CT image shows intense FDG uptake in the same areas.

(a)

(b)