1. Presented by Edward McCarthy, M.D. and prepared by Marc Halushka M.D., Ph.D.

A 45-year old man had pain in both his legs. Radiographs demonstrated defuse radiodensity in a zonal pattern that involved both femurs. In addition, this gentleman had defused radiodensities involving many other long bones. A biopsy showed numerous histiocytic-like cells, and an S100 stain was negative.

images/Halushka/conf121503/case6image1.jpg
images/Halushka/conf121503/case6image2.jpg
images/Halushka/conf121503/case6image3.jpg
images/Halushka/conf121503/case6image4.jpg