[46-year follow up of malignant transformation of choroid nevus with vascularized surface drusen]

The unusual long and atypical clinical course of a prominent black choroidal tumor is presented. It was stationary for decades and became symptomatic for many years. The histologic findings post mortem showed a choroidal nervus with focal malignant change. Its symptoms were obviously caused by subretinal vascularized soft drusen. Only two histologic descriptions of this little-known change over choroidal nevi and two of histologically proven malignant transformations of choroidal nevi are published up to now.