Condition
Nelson Syndrome
Oncology
Overview
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.
This information is general and should not be treated as medical advice. Always speak directly with a qualified healthcare professional before making decisions about treatment, diagnosis, procedures, medicines or care.
Quick facts about Nelson Syndrome
- Topic type
- Condition
- Category
- Oncology
- MeSH classification
- C04.588.322.609.145.500|C10.228.140.617.738.675.149.500|C19.344.609.145.500|C19.700.734.145.500
Preparing for an appointment about Nelson Syndrome
If you are speaking with a healthcare professional about Nelson Syndrome, it can help to prepare a few details in advance.
- Write down your symptoms and when they started.
- Bring details of any medicines, supplements or previous treatments.
- Ask what tests or assessments may be needed.
- Ask what treatment or management options may be suitable.
- Ask when you should seek urgent medical help or follow-up care.
Finding care related to Nelson Syndrome
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Clinics related to Nelson Syndrome
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Source: Medical Subject Headings (MeSH), produced by the U.S. National Library of Medicine. EuroCareFinder is not endorsed by the National Library of Medicine. MeSH version: 2026.