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Empty Sella Syndrome
Empty sella syndrome is the condition when the pituitary gland shrinks or becomes flattened, filling the sella turcica with cerebrospinal fluid instead of the normal pituitary. It can be discovered as part of the diagnostic workup of pituitary disorders, or as an incidental finding when imaging the brain. Signs and symptoms If there are symptoms, people with empty sella syndrome can have headaches and vision loss. Additional symptoms would be associated with hypopituitarism. Additional symptoms are as follows: * Abnormality of the middle ear ossicles * Cryptorchidism * Dolichocephaly * Arnold-Chiari type I malformation * Meningocele * Patent ductus arteriosus * Muscular hypotonia * Platybasia Cause The cause of this condition is divided into primary and secondary, as follows: * The cause of this condition in terms of ''secondary empty sella syndrome'' happens when a tumor or surgery damages the gland, this is an acquired manner of the condition. * ~70% of patients with idi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pituitary Gland
In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland, about the size of a chickpea and weighing, on average, in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain. The hypophysis rests upon the hypophyseal fossa of the sphenoid bone in the center of the middle cranial fossa and is surrounded by a small bony cavity (sella turcica) covered by a Dura mater, dural fold (diaphragma sellae). The anterior pituitary (or adenohypophysis) is a lobe of the gland that regulates several physiological processes including stress, growth, reproduction, and lactation. The intermediate lobe synthesizes and secretes melanocyte-stimulating hormone. The posterior pituitary (or neurohypophysis) is a lobe of the gland that is functionally connected to the hypothalamus by the median eminence via a small tube called the pituitary stalk (also called the infundibular stalk or the infundibulum). Hormones secreted from the pitu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
