Neoplastic Process
Nelson syndrome
nel·son syn·drome
Subclass of:
ACTH-Secreting Pituitary Adenoma
Definitions related to nelson syndrome:
-
A syndrome characterized by HYPERPIGMENTATION, enlarging pituitary mass, visual defects secondary to compression of the OPTIC CHIASM, and elevated serum ACTH. It is caused by the expansion of an underlying ACTH-SECRETING PITUITARY ADENOMA that grows in the absence of feedback inhibition by adrenal CORTICOSTEROIDS, usually after ADRENALECTOMY.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
-
A syndrome that develops following bilateral adrenalectomy for Cushing syndrome. The signs and symptoms result from the presence of an adenocorticotropin-secreting pituitary gland adenoma, and include enlargement of the sella turcica and pressure on the adjacent structures, and skin hyperpigmentation.NCI ThesaurusU.S. National Cancer Institute, 2021
-
Nelson syndrome refers to a spectrum of symptoms and signs arising from an adrenocorticotropin (ACTH)�secreting pituitary macroadenoma after a therapeutic bilateral adrenalectomy. The spectrum of clinical features observed relates to the local effects of the tumor on surrounding structures, the secondary loss of other pituitary hormones,...WebMD, 2019
Return to OpenMD Medical Dictionary
> N
This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.