We have many A-Z keywords for this term.
A xanthoma (pl. xanthomas or xanthomata ) (condition: xanthomatosis ), from Greek, Modern ξανθός (xanthós) , meaning 'yellow', is a deposition of yellowish cholesterol -rich material that can appear anywhere in the body in various disease states.  They are cutaneous manifestations of lipidosis in which lipids accumulate in large foam cells within the skin.  They are associated with hyperlipidemias , both primary and secondary types.