Abstract
Pituitary adenomas represent the most common neoplasms near the sella turcica and constitute approximately 10–12% of all intracranial tumors (Seegenschmiedt 2008; Sanno et al. 2003). Pituitary tumors are classified as microadenomas or macroadenomas based on size, with microadenomas defined as <10 mm in diameter and macroadenomas being ≥10 mm in diameter (Knisely and Sperduto 2008). Pituitary adenomas are also divided into two broad categories: functioning (67%) and non-functioning (33%). Functioning adenomas can be further subdivided by which hormone is secreted: prolactin (28% of all pituitary adenomas), growth hormone (23%), ACTH (8%), and others (such as TSH-producing and gonadotropin-producing, 7%; Committee of Brain Tumor Registry of Japan 2000; Thapar et al. 1997). Management of pituitary adenomas can include observation, medical management, surgical management, and radiation therapy.
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Lien, W.W., Chen, J.C. (2011). Pituitary Adenomas. In: De Salles, A., et al. Shaped Beam Radiosurgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11151-8_10
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