widespread xanthomatosis associated with multiple myeloma, familial hyperlipoproteinemia, or less commonly with primary biliary cirrhosis or no underlying disease.
gen·er·al·ized plane xan·tho·ma·to·sis
(jen'ĕr-ă-līzd plān zan'thō-mă-tō'sis) Widespread xanthomatosis associated with multiple myeloma, familial hyperlipoproteinemia, or less commonly with primary biliary cirrhosis, or with no underlying disease.