Scanning electron microscopy of melanoblastomas of the choroid.

With the scanning electron microscopic study of a case of the fascicular and two cases of epithelioid melanoblastomas it has been found that the shape of the cells is more variable than it was believed before on the basis of light microscopy. Certain types of arrangement described in histological observations, e.g. the fascicular type, can also be well demonstrated by scanning electron microscopy.