[Blood-filled macrocysts of the retina. A comtribution to the differential diagnosis of malignant melanoma of the choroid (author's transl)].

In 3 cases of bloodfilled macrocyst of the retina diagnosis malignant melignant melanoma was made twice. The differential diagnosis of macrocyst of the retina and of malignant melanoma of the choroid is discussed. The macrocyst of the retina is a special form of of retinoschisis. It differs as well in the age group of the patients as in its localisation from presenile and senile retinoschisis. As a complication of macrocyst an oral tear of the retina must be considered.