Beahrs Triangle or Riddle’s Triangle

Beahrs Triangle or Riddle’s triangle

  • This is one of the most important triangle in relation with thyroid
  • This triangle is named after O H Beahrs:
    • Its synonymous as Riddle’s triangle
  • Baehr’s triangle is bounded by:
    • Base:
      • Common carotid artery
    • Superior:
      • Inferior thyroid artery
    • Medial:
      • Recurrent laryngeal nerve
  • The triangle lies:
    • Posterior to the thyroid gland:
      • In the tracheo-esophageal groove
  • Boundaries of Baehr’s triangle:
    • Can be identified after retracting the ipsilateral thyroid lobe medially:
      • To safe guard the recurrent laryngeal nerve

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