4] Because of its histological heterogeneity, it has received many names over the past years, including plasma cell pseudotumor, inflammatory pseudotumor, xanthomatous
pseudotumor, pseudosarcomatous myofibroblastic proliferation, inflammatory myofibrohistiocytic proliferation, atypical fibromyxoid tumor and atypical myofibroblastic tumour.
This lesion is also known as a plasma cell granuloma, myofibroblastoma, inflammatory myofibroblastic tumor, and xanthomatous
pseudotumor, and it occurs as the result of an inflammatory myofibroblastic proliferation and a pseudosarcomatous fibroinflammatory process.
Over time, these myofibroblastic proliferations have had a number of designations, such as inflammatory pseudotumor, inflammatory pseudosarcomatous fibromyxoid tumor, pseudosarcomatous myofibroblastic tumor, fibromyxoid pseudotumor, plasma cell granuloma, plasma cell pseudotumor, and xanthomatous
Comparison of the risk of fatal coronary heart disease in treated xanthomatous
and nonxanthomatous heterozygous familial hypercholesterolaemia: a prospective registry study.
Microscopically, prominent giant cells and xanthomatous
inflammation reaction were present in the wall.
15) T1W and T2W MRI shows tendon enlargement with heterogeneous signal intensity and a focus of increased signal intensity within the tendon corresponding to the xanthomatous
deposit with suppression of the signal on fat-saturated MRI (Figure 7).
Clinical findings include peripheral and palmar xanthomata, and possibly xanthomatous
Histologic examination of the mass showed a combination of chronic inflammation and xanthomatous
change, consistent with tracheal xanthogranulomatosis.
A number of different histologic variants exist for dermatofibromas: clear cell, granular cell, xanthomatous
, ossifying, and palisading.
plaques (yellowish), which cannot be recognized with arteriography, are more common in patients with acute myocardial infarction and unstable angina (26), (27), such plaques are found in all three major coronary arteries, suggesting that the development of these vulnerable plaques is a pancoronary process.
2] This form is histologically similar to granulomatous prostatitis, with the prominence of foamy histiocytes, which constitute the xanthomatous