Sinus of Morgagni (pharynx)

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.
Contents.
Structures passing through this sinus are:
Clinical aspect.
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: