Cited by 14Adrenal and Paraganglionic TumorsPituitary Gland Disorders and TreatmentsAdrenal Hormones and Disorders

Three-year follow up of adrenal incidentalomas in a New Zealand centre

Goh, Ziwei, Phillips, Ian, Hunt, Penny J., Soule, Steven, Cawood, Tom J.·2020·Internal Medicine Journal

Abstract

BACKGROUND: The international guidelines for management of adrenal incidentalomas (AI) are becoming more conservative. These changes are based on the growing body of evidence suggesting that non-functioning adenomas have a low likelihood of becoming functional or malignant over time. AIMS: To follow up at least 100 patients for 3 years who were originally found to have benign adrenal adenomas which were non-functional or had subclinical Cushing syndrome (SCS). METHODS: This study prospectively evaluated consecutive patients aged 18 years or older with benign adrenal incidentalomas (AI), not treated with adrenalectomy, which were non-functioning or had SCS. The initial and follow-up evaluation, including clinical assessment, hormonal investigations and imaging were coordinated via a standardised nurse-led AI clinic. RESULTS: Of 233 patients referred to the AI clinic, 101 patients met the inclusion criteria and completed 3-year follow up. Most of those excluded were due to incomplete initial or follow-up evaluation or were not true AI. Most AI either remained stable or decreased in size on repeat imaging, while 5% of patients had AI enlargement of >5 mm diameter. No patient developed features suggesting adrenal carcinoma. Ninety-two patients had an initial diagnosis of non-functioning adenoma and nine patients had SCS. After 3 years (range 2.9-4.7 years), five of the nine patients with SCS showed normalisation of cortisol parameters (44%), and five of the 92 non-functional AI patients developed SCS (5%). CONCLUSION: After 3 years of follow up, approximately half of patients with SCS normalised, while 5% of patients with initially non-functioning adenomas developed biochemical evidence of SCS. This study found a low likelihood of progressive hormonal excess with no evidence of malignancy developing on follow-up evaluation, providing support for the shift towards the more conservative approach to management of AI recommended in recent guidelines.

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Crossref · 10.1111/imj.14332

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24 of 24 references verified0 citation errors · 0 not checkable

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  • In a New Zealand prospective study of 101 patients with benign adrenal adenomas over 3 years, 9 had ACS at diagnosis and 92 had nonfunctioning AI.

    “A recent New Zealand study, prospectively evaluated 101 patients with benign adrenal adenomas over a 3-year follow up period. Nine patients had evidence of ACS at diagnosis (defined as an elevated 24-hour UFC and a 1mg-DST), while the remaining 92 patients were diagnosed with a nonfunctioning AI.”

    From Adrenal incidentaloma (2020) · cites this paper as [268]

  • At 3 years, 5 of 9 (44%) patients with ACS at diagnosis showed normalization of cortisol parameters.

    “At 3 years, 5 of the 9 patients with ACS at diagnosis (44%) showed normalization of cortisol parameters”

    From Adrenal incidentaloma (2020) · cites this paper as [268]

  • At 3 years, 5 of 92 (5%) patients with nonfunctional AI developed ACS.

    “while 5 of the 92 patients with a nonfunctional AI developed ACS (5%) (268).”

    From Adrenal incidentaloma (2020) · cites this paper as [268]

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Authors
Goh, Z., Phillips, I., Hunt, P. J., Soule, S., & Cawood, T. J.
Affiliations
  • Christchurch Hospital (NZ)
  • Canterbury Health Laboratories (NZ)
Corresponding author
Cawood, Tom J.
Venue
Internal Medicine Journal
Publisher
Wiley
Published
2020-03
Volume
50
Issue
3
Pages
350-356
ISSN
  • 1444-0903 (ISSN-L)
  • 1445-5994
OpenAlex
W2944221326
Cited by
14
References
25
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 5 · 2020: 3
FWCI
2.15
Type
journal article
Language
en
Open access
closed
Locations
  • Internal Medicine Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Adrenal and Paraganglionic Tumors
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pituitary Gland Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
adrenal incidentaloma, non-functioning adrenal adenoma, subclinical Cushing's syndrome, adrenocortical carcinoma, conservative treatment, long-term follow-up, cortisol, nurse-led clinics
MeSH terms
Adolescent, Adrenal Gland Neoplasms, Cushing Syndrome, Follow-Up Studies, Humans, New Zealand

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