Immunoglobulin G4 Sclerosing Cholangitis: An Unusual Cause of Obstructive Jaundice—Case Report and Literature Review

Figure 2

Biopsy fragment of right iliac lymph node showing sinus histiocytic aggregates interlaced with lymphocytes and plasma cells. (a) H&E stain, 100x original magnification. Small cells within the lymph nodes, showing morphologic features of plasma cells, characterized by an oval cellular morphologic, and eccentrically placed nuclei. (b) H&E stain, 200x original magnification. Majority of cellular constituents confirmed to be plasma cells, as demonstrated by diffuse reactivity for CD138 by immunohistochemistry. (c) 200x original magnification.

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