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A xanthoma (pl. xanthomas or xanthomata) (condition: xanthomatosis) is a deposition of yellowish cholesterol-rich material that can appear anywhere in the body in various disease states. [2] They are cutaneous manifestations of lipidosis in which lipids accumulate in large foam cells within the skin. [ 2 ]
Xanthomonas (from greek: xanthos – "yellow"; monas – "entity") is a genus of bacteria, many of which cause plant diseases. [1] There are at least 27 plant associated Xanthomonas spp., that all together infect at least 400 plant species.
Xanthomas are one of types of skin lesions that may occur in this situation. Xanthoma variants associated with hyperlipoproteinemia subtypes Xanthoma variant
Verruciform xanthoma is an uncommon benign [1] lesion that has a verruciform (wart-like) appearance, but it may appear polypoid, papillomatous, or sessile. [2]: 535 The verruciform was first described by Shafer in 1971 on the oral mucosa. [3]
Xanthomas, typically developing in the second or third decade of life, can originate on various tendons. The CYP27A1 gene, responsible for bile acid production, is mutated, reducing chenodeoxycholic acid and cholic acid, leading to increased synthesis of 7α-hydroxy-4-cholesten-3-one, precursor to cholestanol.
Xanthomonas oryzae is a species of bacteria.The major host of the bacterium is rice. [1]The species contains two pathovars, neither of which is native to Europe: X. o. pv. oryzae and X. o. pv. oryzicola.
Xanthomas may appear at any age, even in childhood. These may be present as subcutaneous xanthomas on the buttocks in children or in characteristic locations (e.g., Achilles tendon, extensor tendons of the hand) in children and adults. Xanthelasma and corneal arcus are less common.
Xanthoma striatum palmare is a cutaneous condition characterized by xanthomas of the palmar creases which are almost diagnostic for dysbetalipoproteinemia. [ 1 ] Xanthomas consist of accumulations of lipids within macrophages deposited within the dermis of the skin.