In the pharynx, the sinus of Morgagni is the enclosed space between the upper border of the superior pharyngeal constrictor muscle, the base of the skull and the pharyngeal aponeurosis.[1]
Contents
editStructures passing through this sinus are:
- Cartilaginous part of auditory tube
- Levator veli palatini muscle
- Ascending palatine artery
- Palatine branch of Ascending pharyngeal artery
- Tensor veli palatini muscle
Clinical significance
editIn nasopharyngeal carcinoma, the tumor may extend laterally and involve this sinus involving the mandibular nerve. This produces a triad of symptoms known as Trotter's Triad. These symptoms are:
- Conductive deafness (due to Eustachian tube obstruction)
- Ipsilateral immobility of the soft palate
- Trigeminal neuralgia
References
edit- ^ Gray's Anatomy 1918, Chapter: The Pharynx Archived 2012-01-21 at the Wayback Machine
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