Adrenal disease

Asymmetric Adrenals: Sexual Dimorphism of Adrenal Tumors

J Clin Endocrinol MetabPublished Multicentre observational study

Authors' conclusion

Adrenal asymmetry in both sexes may be related to the pathogenesis of adrenal tumors and should be considered during the diagnosis of these tumors.

Study context

Population
Patients with adrenal tumors (adrenocortical carcinoma (ACC), aldosterone-producing adenoma (APA), CSA, non-aldosterone-producing adrenal cortical adenoma (NAPACA), pheochromocytoma (PCC), neuroblastoma (NB)); human adrenal tissues analysed by multiomics20 adrenal tissues analysed · human adrenal tissues 20
Participants
1,858 / 228 / 68 / 2,174 / 1,824 / 2,320
Exposure
Tumor lateralization and occurrence by sex
  • ACCn = 1,858
  • APAn = 228
  • CSAn = 68
  • NAPACAn = 2,174
  • PCCn = 1,824
  • NBn = 2,320
Outcome
Tumor occurrence by sex and side
Methodological detailsmulticenter, multiomics analysis of adrenal tissues, literature review of CT and MRI studies of adrenal size
  • Multicenter
  • Multiomics analysis of adrenal tissues
  • Literature review of CT and MRI studies of adrenal size

Main finding

As reported in the abstract

ACC, CSA, NAPACA and PCC more common in females than males (female-to-male ratio)

1.1:1-3.8:1

NB and APA less prevalent in females (female-to-male ratio)

0.8:1

ACC, APA, CSA, NAPACA and NB more frequent in left than right adrenal (left-to-right ratio)

1.1:1-1.8:1

PCC more often in right than left adrenal (left-to-right ratio)

0.8:1

Observational data: associations, not effects.

Further findings

Adrenal size

In both sexes the left adrenal was larger than the right; females have smaller adrenals than males

Original publication

Asymmetric Adrenals: Sexual Dimorphism of Adrenal Tumors. J Clin Endocrinol Metab. Published 30 August 2023. doi:10.1210/clinem/dgad515

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