Case 5.
E. coli
-induced xanthogranulomatous colitis
(38 y-o F)
Colon biopsy from a patient with dermatomyositis receiving corticosteroid
Key words :
xanthogranuloma,
E. coli
, steroid
opportunistic infection
Xanthogranulomatous reaction seen in the lamina propria mucosae (HE)
E. coli
antigens seen in the cytoplasm of the foamy macrophages (immunostaining)