Andrioli G C, Scanarini M, Iob I
Neurochirurgia (Stuttg). 1979 Jan;22(1):24-8. doi: 10.1055/s-0028-1090283.
Three cerebellar haemangioblastomas were studied by electron microscopy. One of these shows electron-dense granules within the tumour cells, indicative of erythropoietic activity, as previously described in a haemangioblastoma. The biological significance of these granules is discussed. Biological assay of serum erythropoietic activity was performed in one case.
