pituitary tumours

Last reviewed 06/2022

Pituitary adenomas account for between 5% and 10% of intracranial tumours and present as a result of their endocrine effects or because of the compression of the visual pathways.

An asymmetric tumour growth may lead to predominantly uniocular visual loss due to optic nerve involvement, with a minor field loss in the other eye - often upper temporal.

Pituitary microadenomas may be associated with headache and may ultimately expand to cause chiasmal compression.