Three cases of medullo-epithelioma are reported from a study of almost
350 cases of retinoblastomas or pseudo-retinoblastomas. The cases con
cern one female and two male children of 1,5, 2,5 and 6 years of age r
espectively at the time of diagnosis. Suspected of carrying retinoblas
toma, two of the children were enucleated. Histological examination re
vealed the presence of a benign medullo-epithelioma in one case and a
malignant condition in the other. The third case was treated by brachy
therapy which led to total destruction of the tumor. A new iridian foc
us opposite the original tumor appeared one year later and was in turn
destroyed by cobalt applicator.