Pathology of Perineural Spread

Perineural spread of rhinocerebral mucormycosis.

An unusual pathway of local spread of rhinocerebral mucormycosis is presented with MR and pathologic correlation. Perineural extension, proved with pathology, followed the trigeminal nerve to the pons. Enhancement of the nerve was seen on MR.

Imaging of auriculotemporal nerve perineural spread

IMPORTANCE Adenoid cystic carcinomas (ACCs) are relatively rare tumours, notorious for wide local infiltration and perineural spread. Perineural extension commonly occurs along branches of the trigeminal and facial nerves, and its presence represents a poor prognostic factor with implications for treatment approach. OBSERVATIONS We report the case of a 61-year-old female presenting with worse...

Perineural spread in head and neck tumors.

Perineural spread is the dissemination of some types of head and neck tumors along nervous structures. Perineural spread has negative repercussions on treatment because it requires more extensive resection and larger fields of irradiation. Moreover, perineural spread is associated with increased local recurrence, and it is considered an independent indicator of poor prognosis in the TNM classif...

Perineural spread in head and neck tumors

Perineural tumor spread along the auriculotemporal nerve.

BACKGROUND AND PURPOSE Evaluation of images of perineural tumor spread in patients with head and neck malignancies is essential for planning treatment and determining the patient's prognosis. Although the communications between the facial and trigeminal nerves are not widely known, they may provide a route for tumor growth. The purpose of this study was to elucidate the course of the auriculote...