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Pituitary adenomas are tumors that occur in the pituitary gland. Most pituitary tumors are benign, approximately 35% are invasive and just 0.1% to 0.2% are carcinomas. [1] Pituitary adenomas represent from 10% to 25% of all intracranial neoplasms, with an estimated prevalence rate in the general population of approximately 17%. [1] [2]
The tumor normally results in acral enlargement, arthropathy, hyperhidrosis, changes in facial features, soft tissue swelling, headaches, visual changes, or hypopituitarism. Since pharmacological therapy has had little effect on these tumors, a trans-sphenoidal surgery to remove part of the pituitary gland is the first treatment option. [5]
Nelson's syndrome is a disorder that occurs in about one in four patients who have had both adrenal glands removed to treat Cushing's disease. [1] In patients with pre-existing adrenocorticotropic hormone ()-secreting pituitary adenomas, loss of adrenal feedback following bilateral adrenalectomy can trigger the rapid growth of the tumor, leading to visual symptoms (e.g. bitemporal hemianopsia ...
John Harnett Noseworthy (born 9 November 1951) is an American neurologist who served as the president and chief executive officer of Mayo Clinic from 2009 to 2018. A board-certified neurologist specializing in multiple sclerosis, Noseworthy is the former editor-in-chief of Neurology, the official journal of the American Academy of Neurology. [1]
Robert A. Kyle is a professor of medicine, Laboratory Medicine and Pathology at the Mayo Clinic.He specializes in the care of patients with plasma cell dyscrasias. . Throughout his career Kyle has published more than 1,850 scientific papers and abstracts on myeloma and other plasma cell diso
Other hormone-secreting cells of the pituitary undergo rapid growth in pregnant women as well, which contribute to the gland's enlargement. [10] The anterior pituitary is supplied by a low pressure portal venous system. [15] The anterior pituitary is more commonly affected in Sheehan's syndrome because of the structure of the portal venous system.
Powered by. Why We Never Got Ebola: A Christmas Story. by Tim Cunningham
Theodore H. Schwartz (born in New York City) is an American medical scientist, academic physician and neurosurgeon. Schwartz specializes in surgery for brain tumors , pituitary tumors and epilepsy .