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Levator glandulae thyroideae muscle with three slips.

Marios Loukas1, William Merbs, R Shane Tubbs

  • 1Department of Anatomical Sciences, St George's University, Grenada, School of Medicine, West Indies. mloukas@sgu.edu

Anatomical Science International
|January 23, 2009
PubMed
Summary
This summary is machine-generated.

Anatomical variations of the levator glandulae thyroideae (LGT) muscle near the thyroid gland can pose surgical risks. Awareness of these thyroid muscle variations is crucial for neck surgeons to prevent iatrogenic injuries.

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Area of Science:

  • Anatomical studies
  • Surgical anatomy
  • Human cadaveric research

Background:

  • Anatomical variations in neck musculature can lead to iatrogenic injuries during thyroid and neck surgeries.
  • Understanding these variations is critical for surgical safety and accurate radiological interpretation.

Observation:

  • A unilateral anatomical variation was identified in an 83-year-old female cadaver during a simulated thyroidectomy.
  • The variation involved a small pyramidal lobe of the thyroid gland with three muscular slips of the levator glandulae thyroideae (LGT) muscle.
  • A large tributary of the inferior thyroid vein was noted descending posteriorly along these muscular slips.

Findings:

  • The levator glandulae thyroideae (LGT) muscle exhibited multiple slips in this case.
  • Nerve supply to the LGT muscle originated from the ansa cervicalis.
  • Arterial supply to the LGT muscle was provided by branches of the superior thyroid artery.

Implications:

  • Surgeons operating in the neck, particularly thyroid surgeons, must be aware of potential LGT muscle variations.
  • Radiologists interpreting neck imaging should consider these anatomical anomalies to avoid misdiagnosis.
  • This case highlights the importance of detailed anatomical knowledge for preventing surgical complications.