Rare Form of Erdheim-Chester Disease Presenting with Isolated Central Skeletal Lesions Treated with a Combination of Alfa-Interferon and Zoledronic Acid

Figure 1

Sagittal (a) and frontal (b) CT showing osteolytic bone lesions in S1, sized  cm. (c) Frontal X-rays of lumbosacral region of spine, showing spinal fusion with titanic block.

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