Arachnoid cyst of the fallopian canal: a surgical challenge.
OBJECTIVE
Spontaneous cerebrospinal fluid (CSF) leaks from the fallopian canal are exceedingly rare, with only 6 reports appearing in the world literature. We report a seventh case that is unique in that it involves an arachnoid cyst of the fallopian canal and an associated facial nerve palsy.


METHODS
Case report.


METHODS
International tertiary care referral center.


CONCLUSIONS
CSF otorhinorrhea associated with a facial nerve palsy may be indicative of an arachnoid cyst of the fallopian canal. These fistula are extremely rare. Surgical management involves sealing the fistula while preserving facial nerve function and is extremely challenging.
Isaacson
Jon E
JE
Department of Otolaryngology-Head and Neck Surgery, Milton S. Hershey Medical Center, Hershey, Pennsylvania, U.S.A.
Linder
Thomas E
TE
Fisch
Ugo
U
D000328:Adult; D016080:Arachnoid Cysts / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D002558:Cerebrospinal Fluid Otorrhea / Q000209:etiology; D002559:Cerebrospinal Fluid Rhinorrhea / Q000209:etiology; D005158:Facial Paralysis / Q000209:etiology; D006801:Humans; D008297:Male; D013701:Temporal Bone / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed