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Rare Anatomic Variation of the Levator Claviculae Muscle
Nathaniel G Blanchard1, Jenna Farnum1, Tristan Packard1
1Anatomy, Michigan State University College of Osteopathic Medicine, East Lansing, USA.
Cureus
|July 31, 2025
Summary
A rare anatomical variation, the levator claviculae muscle, was found in a 98-year-old male. This accessory muscle in the neck may impact clinical diagnoses and requires greater awareness among healthcare professionals.
Area of Science:
- Anatomy
- Morphology
- Human Anatomy
Background:
- Cervical musculature exhibits known variations.
- Accessory muscles in the neck are documented in anatomical literature.
Observation:
- A case report details the discovery of a levator claviculae muscle.
- This variation was identified during the prosection of a 98-year-old male anatomical donor.
- The muscle was situated in the left cervical region.
Findings:
- The levator claviculae originated from the levator scapulae's posterior belly.
- It extended along the trapezius's anterior border to insert on the inferior clavicle.
- Cervical plexus branches innervated both levator scapulae and levator claviculae.
Implications:
- Awareness of unusual anatomical variations is crucial for clinicians.
- This case highlights the clinical significance of cervical musculature anomalies.
- Understanding such variations can prevent misdiagnosis and aid patient care.
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