[Intra-parotid neurogenic tumors of the facial nerve. Value of MRI].
Facial nerve intraparotid neuromas are rare. We report two cases with no facial paralysis. In the first case, the clinical protocol for the evaluation of a parotid mass did not suggest the intramastoid tumor extension. This extension was shown by CT and MRI and confirmed by gross and microscopic appearance. In the second case, no intrapretrous extension was observed with MRI. The diagnosis of neuroma was made during surgery. With a literature review, we discuss the diagnostic difficulties encountered in the investigation of parotid facial nerve tumors, emphasizing on the usefulness of CT and MRI in its diagnosis.
Fisch-Ponsot
C
C
Centre Universitaire de santé de l'Estrie, Département de Radiologie. Sherbrooke Québec, Canada.
Sigal
R
R
Schmutz
G
G
Dacher
J N
JN
Brazeau-Lamontagne
L
L
Marchand
F
F
Dorion
D
D
D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005155:Facial Nerve Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009442:Neurilemmoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed