Abstract
Pituitary tumours grow slowly and are initially confined to the sella turcica. They may grow out of the sella and compress or destroy the optic chiasm, hypothalamus or surrounding bony structures. They are mostly benign and are associated with an immense diversity in their endocrine manifestations secondary to hormone excess or deficiency and ophthalmologic manifestations due to the mass effect of enlarging pituitary adenomas. Progress in the diagnostic examination of pituitary adenomas and advances in treatment of these tumours offer excellent prospects for a successful therapeutic outcome using a multidisciplinary approach. Therapeutic options for the treatment of pituitary adenomas have largely widened. Management by medical treatment, surgery or radiotherapy is possible. Treatment success depends on various factors, such as the tumour size, invasiveness, localisation, direction of growth or hormonal activity. The goals of pituitary adenoma therapy are to remove or to destroy the tumour, control hypersecretion and restore lost function without producing hypopituitarism or injury to surrounding normal tissue. There is therefore no doubt that the initial treatment for nonfunctional and hormonally active adenomas, except prolactinomas, is reserved to neurosurgery in operable patients [46, 68]. The reason is that surgical resection accomplishes these goals most rapidly, with prompt decompression of mass effects and improvement in pituitary function. In most cases, transsphenoidal or occasionally transethenoidal resection of the adenoma can be performed. Of particular interest was the development of microsurgical techniques, offering selective extraction of microadenomas [58]. For many pituitary adenomas, a major problem is the recurrent growth of tumours that are either primarily invasive or incompletely removed.
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Zierhut, D. (2008). Pituitary Adenoma. In: Seegenschmiedt, M.H., Makoski, HB., Trott, KR., Brady, L.W. (eds) Radiotherapy for Non-Malignant Disorders. Medical Radiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68943-0_37
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DOI: https://doi.org/10.1007/978-3-540-68943-0_37
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