Purpose: To describe the aspect and progression of choroidal nevi associated with macular serous detachment and to analyze different treatments.
Material: and methods: Twelve posterior choroidal nevi were associated with subretinal fluid. The fovea was detached in 11 cases. Tumor thickness was 2 mm or less.
Results: No treatment was given in 6 cases and spontaneous subretinal fluid regression was observed in 3 of these 6 cases. Success was also observed in 2 of 3 cases treated with corticotherapy, but subretinal fluid recurred. Gas injection was performed in 1 case and transpupillary thermotherapy in 2 others, all 3 with successful definitive drying of the nevus. Visual acuity decreased in 6 cases (in 3 untreated cases and in 3 cases treated with corticotherapy), remained stable in 3 cases, and increased in 3 cases (in 1 untreated case, in 1 gas injection case, and in 1 case after thermotherapy). Tumor growth was observed in 3 cases, on the average 2 years after diagnosis (25%).
Conclusion: Subretinal fluid is rarely observed with choroidal nevi and its progression is variable. Various treatments in addition to observation such as corticotherapy, gas injection, transpupillary thermotherapy seem effective in stabilizing or improving visual function. Supervision is nevertheless needed to detect tumor growth that can be frequent in these nevi associated with subretinal fluid.