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 Headings
    U.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 Thesaurus
    U.S. National Cancer Institute, 2021
  • Medscape
    WebMD, 2019
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