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Four out of twenty-three acromegalic patients selected for treatment with external megavoltage pituitary irradiation between 1961 and 1975 developed progressive visual failure. They had received megavoltage external irradiation through multiple portals from a cobalt-60 unit over a period of 3 weeks. Visual deterioration began 2 months to 6 years after irradiation. In two patients the optic nerves were explored. In both, post-mortem later confirmed radiation damage to the optic nerves and hypothalamus. In one case there was also necrosis of the right frontal lobe with necrosis and inflammation of the bone surrounding the pituitary fossa. In the two other patients, extensive clinical and neuroradiological investigation excluded the presence of a suprasellar mass as a cause for this visual failure and a clinical diagnosis of radiation necrosis was made.
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
July 1992,
Zhonghua nei ke za zhi,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
January 1978,
Hormone research,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
February 1974,
The American journal of the medical sciences,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
July 1976,
The American journal of medicine,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
September 1990,
Indian journal of cancer,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
October 1995,
International journal of radiation oncology, biology, physics,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
March 1989,
Clinical endocrinology,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
September 1982,
Clinical endocrinology,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
February 1990,
Clinical endocrinology,
A B Atkinson, and
I V Allen, and
D S Gordon, and
D R Hadden, and
C J Maguire, and
E R Trimble, and
A R Lyons
June 1970,
The New England journal of medicine,
