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[The contribution of inflammatory cell infiltration to conjunctival inclusion cyst formation]
K Suzuki1, S Okisaka, T Nakagami
1Department of Ophthalmology, National Defense Medical College, Tokorozawa, Japan.
Purpose:
The incidence of inclusion cysts was examined histopathologically in conjunctival disorders where inflammatory cell infiltration was seen in the subepithelial connective tissue.
Method:
The incidence of inclusion cysts was examined histopathologically in pterygium, vernal conjunctivitis, pyogenic granuloma and pingueculitis. The specimens of pinguecula were used as control.
Results:
Inclusion cysts were recognized in 5/55 cases of pterygium, 2/12 cases of vernal conjunctivitis, 1/4 cases of pyogenic granuloma, and 1/2 cases of pingueculitis. On the other hand no inclusion cyst was recognized in 20 cases of pinguecula in which no inflammatory cell infiltration was seen.
Conclusions:
Inflammatory cell infiltration may contribute to the formation of conjunctival inclusion cysts in pterygium, pingueculitis, vernal conjunctivitis and pyogenic granuloma.