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Related Experiment Videos

The black thyroid: an unusual finding during neck exploration.

J G Noble1, T J Christmas, C Chapple

  • 1Department of Urology, Middlesex Hospital, London, UK.

Postgraduate Medical Journal
|January 1, 1989
PubMed
Summary

Minocycline, an antibiotic, can cause black thyroid discolouration. This paper discusses its discovery during surgery and potential mechanisms.

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Area of Science:

  • Endocrinology
  • Histopathology
  • Pharmacology

Background:

  • Minocycline is a widely used tetracycline antibiotic.
  • Thyroid discolouration is an uncommon finding.
  • Previous reports linked minocycline use to black thyroid in post-mortem studies.

Observation:

  • This paper reports the intraoperative discovery of black thyroid discolouration.
  • The phenomenon was observed in a patient with a history of minocycline treatment.
  • Neck exploration revealed the unexpected thyroid appearance.

Findings:

  • Black thyroid discolouration is a potential side effect of minocycline.
  • The exact mechanism involves pigment deposition within thyroid tissue.
  • Histopathological examination is crucial for diagnosis.

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Implications:

  • Clinicians should be aware of this potential adverse effect.
  • Intraoperative findings may prompt further investigation into medication history.
  • Understanding the mechanism can guide future research on drug-induced thyroid changes.