Reactive Lymphoid Hyperplasia of the Liver Incidentally Found in a 55-Year-Old Woman with a History of Ulcerative Colitis

Figure 6

Histopathological findings. (a) HE low magnification. A geographical hyalinization was observed in the center of the lesion. (b) HE high magnification. It was a lesion showing confluent proliferation of lymphoid follicles with germinal center (yellow-dotted area). (c) Lymphoid follicles were CD20-positive. (d) Lymphoid follicles were Bcl-2-negative. (e) Mild IgG-positive histiocytes and plasma cells were observed between the follicles (yellow-dotted area). (f) There was no significant increase in IgG4-positive cells.

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