CASE HISTORY / CLINIC:
67-year-old patient with hoarseness and severe dysphagia.


FINDING:
The axial CT image (upper picture) demonstrates a well defined hyperintense homogeneous mass measuring about 2 x 1.5 cm in diameter in the right parapharyngeal space. The neighboring structures, especially the blood vessels are distincly demarcated from the mass. The coronal reconstruction image (lower picture) clearly demonstrates the cranio-kaudal dimensions of the tumor likewise the lateral displacement of the internal carotid artery without any evidence of invasion.


DIAGNOSIS:
Neurinoma of the vagus nerve.


DIFFERENTIAL DIAGNOSIS:
Neurinoma of a different nerve.