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
Structures 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
In 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

#sinusofmorgagni

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