Conjunctival Lymphangiogenesis Was Associated with the Degree of Aggression in Substantial Recurrent Pterygia

Figure 1

Lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1) immunohistochemistry for normal human conjunctiva and recurrent pterygia. A small number of LYVE-1 positive lymphatic vessels were found in Grade 1 (a) and 2 (b) recurrent pterygia. The number of lymphatic vessels was increased in Grade 3 (c) recurrent pterygia. The number of lymphatic vessels in normal human conjunctiva was decreased compared with that in pterygium patients. Only a few lymphatic vessels were positive for LYVE-1 in the normal epibulbar conjunctival segments (d) (green arrows indicate lymphatic vessels; magnification: , , , and   ×100; , , , and   ×200).

(a)

(b)

(c)

(d)