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

Figure 4

Acute hydrocele. (a) The wall is edematous and contains submesothelial lacunae (arrows). Inflammatory cells are absent. (b) D2-40 stain demonstrates that the lacunae (asterisk) are lined by ELCs. The box displays a stoma communicating a lymphatic lacuna to the mesothelial surface. (c) Higher magnification of area shown in the box: ELCs form a continuum with the mesothelial layer (arrow). (d) ELCs too close to the surface (arrow). (e, f) CK-7 positive only for superficial mesothelial cells (arrows) ((a) HE; (b), (c), (d) D2-40; and (e), (f) CK-7. Scale bar = 50 μm).

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