A 2.32 mm elevated (basis:7.28mmx5.21mm) melanocytic choroidal nevus with serous detachament of the retina. Although the terminus nevus means a benign tumor, a nevus as seen in this picture must be closemeshedly monitored every 6 months because of the elevation, which is higher than 2 mm, and the presence of serous detachment of the retina. These secondary changes are suspicious of a malignant transformation. Other secondary changes can be
observed, i.e. drusen and defects of the pigmented epithelium. Colour photography or better infrared photography- is essential for the clinical follow-up of choroidal nevi. Ultrasonography, fluorescein angiography as well as campimetry and laser-flare tyndallometry help to achieve correct evaluation of tumour progression. Choroidal nevi occur in about 20% of Caucasians and are very rarely observed in blacks.