Scotti G, De Grandi C, Colombo A
Neuroradiology. 1978 May 31;15(3):183-4. doi: 10.1007/BF00329066.
The megadolichobasilar anomaly may be diagnosed by CT as an extra-axial lesion in the cerebellopontine angle. It enhances in a tubular fashion after intravenous injection of contrast. Hydrocephalus resulting from obstruction of CSF circulation may be demonstrated.