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  Indian J Med Microbiol
 

Figure 2: Granulomatous angiitis and immunohistochemical markers. (A and B) Granulomatous angiitis. Photomicrographs show blood vessels with transmural infiltrate (arrow) of lymphoplasmacytic cells (hematoxylin-eosin staining, original magnification, ×100) in A and transmural infiltration with epithelioid granuloma and Langhans type giant cell (arrow) (hematoxylin-eosin staining, original magnification, ×400) in B. (C and D) Immunohistochemical markers. Photomicrographs show diffuse cytoplasmic positivity (arrow; CD68 immunostaining, original magnification, ×100) in C and focal CD1a positivity (arrow; original magnification, ×400) in D

Figure 2: Granulomatous angiitis and immunohistochemical markers. (A and B) Granulomatous angiitis. Photomicrographs show blood vessels with transmural infiltrate (arrow) of lymphoplasmacytic cells (hematoxylin-eosin staining, original magnification, ×100) in A and transmural infiltration with epithelioid granuloma and Langhans type giant cell (arrow) (hematoxylin-eosin staining, original magnification, ×400) in B. (C and D) Immunohistochemical markers. Photomicrographs show diffuse cytoplasmic positivity (arrow; CD68 immunostaining, original magnification, ×100) in C and focal CD1a positivity (arrow; original magnification, ×400) in D