Identification of the Recurrent Laryngeal Nerve

  • Anatomical triangle for the identification of the recurrent laryngeal nerve (RLN):
    • Often disclosed under other eponyms:
      • The triangular “area” as it is known today:
        • Was initially described by Frank H. Lahey:
          • Although the author (in his seminal article of 1938) does not refer to a triangle, he achieves an accurate description of the anatomical landmarks that have persisted over time
  • Lahey’s “Area” (1938):
    • Superior border:
      • Inferior thyroid artery
    • Medial border:
      • Trachea
    • Lateral border:
      • Common carotid artery
    • Content:
      • Recurrent laryngeal nerve
  • Image: “right paratracheal gutter”:
    1. Common carotid artery (right)
    2. Inferior thyroid artery
    3. Trachea
    4. Recurrent laryngeal nerve
    5. Superior parathyroid gland
    6. Inferior parathyroid gland
    7. Thyroid lobe
    8. Common carotid artery (left)
  • Triangle by Max M. Simon (1943):
    • Superior border:
      • Inferior thyroid artery
    • Medial border:
      • Recurrent laryngeal nerve
    • Lateral border:
      • Common carotid artery
  • Triangle by John M. Loré (1977?):
    • Superior border:
      • Inferior pole of the lateral lobe of the thyroid gland (retracted superiorly)
    • Medial border:
      • Trachea / esophagus
  • #Arrangoiz #ThyroidSurgeon #Teacher#ThyroidExpert #ParathyroidSurgeon #Surgeon #EndocrineSurgery #HeadandNeckSurgeon

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