Figure 1.

Fallopian Tube Lymphoma. Hematoxylin and eosin-stained section of the left fallopian tube showed diffuse back to back follicles without well defined mantle zones, involving the subserosa and outer muscularis but not the mucosa (A). At higher magnification, the follicles were composed of predominantly small cleaved lymphocytes admixed with rare large cleaved and large non-cleaved lymphocytes (B). The cells were strongly positive for CD20 (C) and BCL6 (D). Magnifications: 40× in A, C, and D; 400× in B.

Alduaij et al. Diagnostic Pathology 2010 5:44   doi:10.1186/1746-1596-5-44
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