Xanthoma is an interesting, inflammatory, noncancerous lesion that rarely diagnosed in companion animals, although it has been reported a number of domestic and wild species. Macroscopically, can range from few millimeter plaques or nodules to even several-centimeter masses. It usually occurs within the skin, but almost all other internal systems organs. As name suggests, xanthoma most often ye...

In four patients with hypercholesterolemia (type II hyperlipoproteinemia) and xanthomatosis the decay of serum cholesterol specific activity was followed for 53-63 wk after pulse labeling. Specific activity of biopsied xanthoma cholesterol was measured four times in the course of the study. The xanthoma specific activity curve crossed and thereafter remained above the serum specific activity cu...

In a series of nine hundred (circa) tumors of the breast in which the preoperative diagnosis was carcinoma, histologic examination showed that in three instances the lesion was a xanthoma. Although the diagnostic error in reference to xanthoma was, therefore, small, the rarity of these tumors and their relation to abnormal lipoid metabolism prompts a discussion of them, as well as of the xantho...