[3] Balloon cell nevi can affect the skin, choroid, and conjunctiva.

Usually, they appear as elevated, mobile, hyperpigmented masses in the ocular adnexa.

[4] The characteristics of balloon cells include their relatively large sizes, small, round nuclei positioned in the center, and largely transparent cytoplasm.

[3] Examining under a microscope is particularly crucial when it comes to balloon cell nevi.

Progressive vacuolization of melanocytes or nevus cells, caused by the enlargement as well as eventual destruction of melanosomes, results in the formation of balloon cells.