Ipsilateral Lymphatic and Venous Malformations Affecting the Midface Area

Figure 3

(a) Gross photograph of the excised left orbital tumor showing the reddish well-circumscribed mass measuring approximately 1.5×1.5 cm in base dimensions. (b) Histopathological examination of the orbital tumor reveals enlarged vascular channels with thick walls, the lumens of which are filled with erythrocytes embedded in a fibrous stroma (arrows), consistent with orbital cavernous venous malformation (H.E. ×100). (c) Histopathological examination of the conjunctival lesion shows several ectatic bloodless lymphatic channels, lined with flattened endothelium (arrows). There is prominent lymphoid infiltration and aggregates in the stroma, consistent with the diagnosis of conjunctival lymphatic malformation (H.E. ×100).

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