[Simultaneous cutaneous and choroidal melanomas (author's transl)].

In patients with both cutaneous and ocular malignant melanomas it is most important for prognosis and therapy to know whether they are distinct tumors developing simultaneously or whether one of the tumors represents a metastasis of the other. In the case reported here, two distinct tumours developed independently from pre-existing benign melanocytic lesions. Cases of this type, which are extremely rare, are discussed as well as the differential diagnosis between primary choroidal malignant melanoma and choroidal metastases from melanomas of different origin.