The potential of vertebral phlebography for the diagnosis of tumours in the posterior cranial fossa.

The diagnostic value of the vertebral phlebogram is emphasized. A practice orientated principle is recommended for the classification of infratentorial veins. A total of 132 phlebograms taken from patients with intratentorial tumours is analyzed for local diagnosis, general diagnosis, venous circulatory disorder, and pathologic veins. An example is given to underline the importance of tomography in vertebral phlebography.