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n. pl. xan·tho·mas or xan·tho·ma·ta (-mə-tə)
A yellowish-orange, lipid-filled nodule or papule in the skin, often on an eyelid or over a joint.

xan·thom′a·tous (-thŏm′ə-təs) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(zænˈθəʊmətəs; zænˈθɒmətəs)
(Pathology) pathol of, relating to, or marked by xanthoma
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
These features should prompt a closer inspection for xanthomatous (foam) cells, which are confined to the dermal papillae (Figure 9, C).
(9,10) In a great white pelican (Pelecanus onocrotalus) with subcutaneous xanthomatosis (11) and a goose (Anser anser) with atypical multiple, xanthomatous, cutaneous neoplasia, (12) hyperlipidemia was thought to be a potential cause.
Based on histopathologic examination, which is needed to confirm the diagnosis, primary hypophysitis can be categorized into five groups: lymphocytic, granulomatous, xanthomatous, IgG4 plasmacytic, and necrotizing hypophysitis (NH) (2).
Examination revealed xanthomatous infiltration of cornea and oral mucosa.
Among the connective tissue tumours, angioma is very common and nerve sheath tumours are seen less frequent, while others like Lipoma, Xanthomatous tumours and Histiocytic tumours are still rare.
(7) Morphologically, foamy gland HG PIN is characterized by bland nuclei and abundant xanthomatous cytoplasm with a distinct foamy appearance.
Histologically, PXA is characterized by spindle cells, multinucleated giant cells and foamy lipid-laden xanthomatous cells.
The biopsy reported a carcinoma with cribriform xanthomatous phenotype (Figure 4).
It can be associated with a moderate chronic foreign body inflammatory process type and rare xanthomatous histiocytes.
Microscopically, the hallmark of VX is the presence of foamy (xanthomatous) cells in the connective tissue papillae [1-5].
Most notable findings on histological examination of APXA are pleomorphic, xanthomatous tumour cells with intracytoplasmic lipid vacuoles.
The distinctive feature of xanthogranulomatous prostatitis is the presence of large number of foamy histiocytes (lipid-laden macrophages) also known as xanthomatous cells admixed with other inflammatory cells.