A new type of non-recurrent inferior laryngeal nerve in a cadaver with a right retroesophageal subclavian artery
Journal Title: International Journal of Anatomical Variations - Year 2017, Vol 10, Issue 2
Abstract
The presence of the retroesophageal right subclavian artery predicts the presence of a right non-recurrent inferior laryngeal nerve (NRILN). Three different right NRILNs have been previously described: Types Ia, Ib and II. This case describes a new variant of right NRILN, termed Type III, which arises from the vagus nerve as it exits the jugular foramen. Unlike previously described NRILNs, which enter the inferior aspect of the larynx, the Type III NRILN enters the larynx through the thyrohyoid membrane. The unusual course of the Type III NRILN makes it vulnerable to injury during neck surgeries.
Authors and Affiliations
Newton BW, Rodgers SA, Rau JN, Hong MY, Terreberry RR RR
Keywords
Related Articles
- EP ID EP597669
- DOI -
- Views 36
- Downloads 0
Absence of right posterior communicating artery
The circle of Willis represents a vascular network located at the base of the skull in the interpeduncular fossa. The anterior cerebral artery forms the anterior section of the circle of Willis from the right and left si...
Anthropometric study on the anatomical variation of the external ear amongst Port Harcourt students, Nigeria
Background: The morphology of an individual‘s external ear and its dimensions vary amongst persons to the point that the right and left ears differ. Aims: This study is aimed at establishing the anatomical variation in...
Hippocampal volumetric variations in the normal human brain by magnetic resonance imaging (MRI)
The morphology and size of the human brain and its major anatomically defined subdivisions are very important for understanding neurological diseases and also for neurosurgery. The diagnosis of Alzheimer disease (AD) and...
Bilateral pectoralis major and pectoralis quartus variants: A conjoined tendon passing through the inter tubercular groove
The pectoralis major has been described to insert on to the lateral lip of the intertubercular groove of the humerus. The pectoralis quartus is a variant that runs parallel to the lateral border of the pectoralis major....
Morphological variation of thoracic splanchnic nerves in selected Ethiopian cadavers, Gondar and Mekelle Ethiopia
Background: Patients with chronic pancreatic carcinoma and cancer of the pancreas often experience severe pain. Sympathatictomy and celiac ganglia blockage or distraction has been applied with varying degree of efficacy...