Roentgen Findings in Occipital Pole Tumors

Abstract

The arteriographic findings of occipital pole tumors consist of the following:

1. Anterior displacement and elevation of the middle cerebral group.

2. “Accordioning” of the anterior choroidal artery.

3. Anterior displacement of the lateral branch of the posterior choroidal artery.

4. Local stretching of vessels about the tumor.

5. “Onion skinning” of the pial vessels.

6. Anterior displacement of the vein of the occipital horn.

7. Greater displacement of the internal cerebral vein than of the anterior cerebral artery.

Air studies require precise radiographic technique lest the subtle displacements of the occipital horn and trigone area be missed.

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