Pituitary Tumor and Pituitary Adenoma

Pituitary tumor is a group tumor that happened in the anterior and posterior lobe and residual craniopharyngioma tube epithelial cells, accounting for about 10% of intracranial tumors, this group of tumors of the adenoma before the majority of leaf, from the posterior lobe From a variety of rare intracranial metastases may affect pituitary, pituitary tumor with primary identification.

Pituitary adenoma is common benign adenoma, in recent years, there is a growing trend, especially in women of childbearing age.

Pituitary is located at the skull base in the pituitary fossa, pituitary stalk from the hypothalamus linked with the size for the long 1.2cm, width 0.8cm, high-0.6cm, weighing about 0.5g, females slightly larger than males, even more evident during pregnancy . Diaphragma sellae through the pituitary stalk connecting the hypothalamus and pituitary gland, pituitary stalk formed by blood vessels and nerves, pituitary venous sinus on both sides to have their carotid artery, oculomotor nerve, trochlear nerve outreach and the trigeminal nerve. Pituitary gland was divided into before and after 2, page for adenohypophysis, neurohypophysis after also; a variety of anterior pituitary hormone secretion, such as adrenocorticotropic hormone (ACTH), growth hormone (GH), secreted (CUI) milk hormone (PRL ), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and urged a sharp gland hormone (TSH) and so on. Pituitrin hypothalamus major storage and secretion of antidiuretic hormone (ADH) and oxytocin.