Figure 2

H&E and immunohistochemical studies. H&E showed the mass was filled with clear cystic fluid containing a small amount of a jelly-like substance. The final pathological examination showed that the cyst comprised various lymph vessels, and smooth muscle cells were observed in part of the capsule wall ((A) × 100 field, (B) × 400 field). Immunohistochemistry showed strong reactivity of most cells for D2-40 (C) and CD34 (D) and weak to moderate reactivity of fewer cells to smooth muscle actin (E) and F8-R-Ag (F).