1. The reason for the higher frequency of aneurysms in association with these tumours than that of incidental aneurysms previously recorded is unknown. There were no obvious clinical differences between these cases and the rest of our series, and, apart from case 2 previously mentioned. there was no evidence of diffuse vascular disease or hypertension. With the exception of the anterior communicating aneurysm in case 2, the aneurysms were all on vessels adjacent to the tumours. This suggests the possibility of a mechanical effect, perhaps associated with increased tension on or flow through small vessels supplying the tumour. There was, however, no obvious difference in the vascularity of the tumours with aneurysms and that of the rest of our cases
2. Microsurgical frontotemporal approach to pituitary adenomas with extrasellar extension;Alphen, von H.A.M.;Clinical Neurology and Neurosurgery,1975
3. Radiological diagnosis of pituitary tumours;Ambrose, J.,1973
4. The Pituitary Body and its Disorders. Clinical states produced by disorders of the hypophysis cerebri;Cushing, H.,1912
5. Some observations on the natural history of intracranial aneurysms;Du Boulay, G.H.;British Journal of Radiology,1965