Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Site > Endocrine Gland Neoplasms > Pituitary Neoplasms > Nelson Syndrome Terms and Definitions

Nelson Syndrome

Medical Definition:	A syndrome characterized by increased skin pigmentation, visual defects secondary to compression of the OPTIC CHIASM, and elevated serum levels of ACTH following adrenalectomy for CUSHING SYNDROME. The cause of this syndrome is expansion of an underlying ACTH-secreting pituitary adenoma. (Joynt, Clinical Neurology, 1992, Ch36, p81)
Previously Indexed:	Adenoma (1966-1977),Pigmentation Disorders (1966-1977),Pituitary Neoplasms (1966-1977)

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