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Nelson Syndrome

Nelson syndrome is a medical disorder which is characterized by abnormal secretion of hormones and enlargement of the pituitary gland. This condition occurs after an adrenalectomy, which causes the growth of a pituitary tumor. This is a rare disorder, thus doing research on it is a great challenge. Before the 1980’s, 20-40% of patients with a pituitary adenoma who under went bilateral adrenalectomy, developed Nelson syndrome within 1-4 years (UCLA, 25 Jul 2003). Reports have shown a steady decline in cases of Nelson syndrome since the 1980’s and this has been credited to the better assessment and management of patients with Cushing’s disease (Chrousos, 25 Jul 2003).

Studies have proven that more than 99% of all cases relating to Nelson Syndrome arise after a patient has had a bilateral adrenalectomy done for Cushing Disease (Chrousos, 25 Jul 2003). The single most common cause of the developing tumor with high levels of adrenocorticotropin or ACTH is primary adrenal insufficiency and this can either be congenital or acquired (Chrousos, 25 Jul 2003). The congenital cause includes hypoplasia or adrenal hyperplasia (Chrousos, 25 Jul 2003). The acquired c

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Approximate Word count = 791
Approximate Pages = 3 (250 words per page double spaced)

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