Sunday 18 March 2012
Barium granuloma, a rare complication of x ray examination, shows collections of macrophages and multinucleated giant cells filled with granular material.
Hyalinoid giant cell gastritis is characterised by eosinophilic hyalinoid degeneration of smooth muscle which elicits a giant cell
However, in all the aforementioned conditions, a prominent foamy cell infiltrate, as seen in the present case, is not observed.
Malacoplakia is characterised by accumulations of macrophages with granular, acidophilic cytoplasm containing laminated structures called Michaelis-Gutmann bodies. Although malacoplakia and xanthogranulomatous processes are morphologically and perhaps pathogenetically similar, accounting for the existence of transitional forms, Michaelis-Gutmann bodies are found only in malacoplakia.
Inflammatory pseudotumour or plasma cell granuloma may be present
as a mass in many sites, including the stomach, and shows a variable admixture of plasma cells, spindle cells of myofibroblastic type, and
foamy histiocytes. Thus the histological picture may be very suggestive of a xanthogranulomatous process.
Xanthogranulomatous gastritis: association with xanthogranulomatous cholecystitis. Guarino M, Reale D, Micoli G, Tricomi P, Cristofori E. J Clin Pathol. 1993 Jan;46(1):88-90. PMID: 8432899