Lymphatic Endothelial Cell in Endemic Bancroftian Filariasis: A Focus on the Lymphatics of the Tunica Vaginalis Testis

Figure 8

Filaricele grade 3. (a) MCs pervade the whole width of the PL and form complex gland-like or papillary structures (box). MCs arranged in rows parallel to the free surface (arrows). (b) Papillary structure shown in the box. The mesothelial cells have an epithelial appearance and bland nucleus without atypia (arrows). Retraction artifacts (#). (c) Diffuse infiltration of macrophages and lymphocyte. (d) Retraction artifacts (#) should not be mistaken as lymphatics (asterisks), which do not stain for CK-7. (e) Dilated LVs (asterisks) lined by a single layer of ELs (thinner arrows); in this area, transverse diameters of the lymphatics varied from 43.4 μm to 112.9 μm. MCs (thicker arrows) and retraction artifacts (#) ((a), (c), (d) CK-7; (b) HE; and (e) D2-40. Scale bar = 50 μm).

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