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Purpose <p>Hormone immunoassay may be subject to interferences and, although rarely reported, this can occur for testosterone too. This work is aimed to highlight the importance of considering possible analytical interferences when the biochemical data doesn’t match with the clinical picture.</p> Methods <p>We report three cases of insidious diagnosis due to laboratory interference in testosterone immunoassay, and we provide a brief literature review on this issue.</p> Results <p>We found falsely high testosterone levels due to the presence of heterophilic antibodies, leading to unnecessary investigations, misdiagnosis and inappropriate treatments.</p> Conclusion <p>The detection of elevated testosterone levels on immunoassay not corresponding to clinical findings need to be confirmed by liquid chromatography-tandem mass spectroscopy, prior to escalation of complex diagnostic investigation and care.</p>

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Intricate diagnosis due to falsely elevated testosterone levels by immunoassay

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月13日

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  • Benedetta Gardini,
  • Marta Bondanelli,
  • Alessio Cariani,
  • Maria Chiara Zatelli,
  • Maria Rosaria Ambrosio

摘要

Purpose

Hormone immunoassay may be subject to interferences and, although rarely reported, this can occur for testosterone too. This work is aimed to highlight the importance of considering possible analytical interferences when the biochemical data doesn’t match with the clinical picture.

Methods

We report three cases of insidious diagnosis due to laboratory interference in testosterone immunoassay, and we provide a brief literature review on this issue.

Results

We found falsely high testosterone levels due to the presence of heterophilic antibodies, leading to unnecessary investigations, misdiagnosis and inappropriate treatments.

Conclusion

The detection of elevated testosterone levels on immunoassay not corresponding to clinical findings need to be confirmed by liquid chromatography-tandem mass spectroscopy, prior to escalation of complex diagnostic investigation and care.