Objective Poreneephalic cyst presenting with otologie involvement is uncommon. Only a few eases have been reported. We report a rare case of cerebrospinal fluid （CSF） otorrhea caused by a massive porencephalic cyst ...Objective Poreneephalic cyst presenting with otologie involvement is uncommon. Only a few eases have been reported. We report a rare case of cerebrospinal fluid （CSF） otorrhea caused by a massive porencephalic cyst encompassing the left temporal and occipital lobes. The CSF leak was repaired successfully using a transmastoid approach with facia, abdomen fat and fibrin glue to seal the osseous defects in the sinodural angle. A review of the literature concerning porencephalic cyst and CSF otorrhea is also presented.展开更多
Cerebrospinal fluid fistulae occur when defects in dura, pla-arachnold or skull permit the cerebrospinal fluid escape from the subarachnoid space via anterior naris, nasopharynx or external acoustic meastus, Which is ...Cerebrospinal fluid fistulae occur when defects in dura, pla-arachnold or skull permit the cerebrospinal fluid escape from the subarachnoid space via anterior naris, nasopharynx or external acoustic meastus, Which is most commonly manifested as rhinorrhea or otorrhea,complicated by serious recurrent meningitis for months or years.This paper reports 20 cases of rhinorrhea and one of otorrhea, persisting longer than 3 months. All the cases were repaired successfully and there was no recurrence arter being followed up for 1 to 20 years.We compared various diagnostic methods and suggested a simple operative procedure.展开更多
Cerebrospinal fluid(CSF)fistulae originating from the fallopian canal of the facial nerve is hypothesized to arise due to atypical patterns of subarachnoid space extension into the geniculate ganglion or more distal r...Cerebrospinal fluid(CSF)fistulae originating from the fallopian canal of the facial nerve is hypothesized to arise due to atypical patterns of subarachnoid space extension into the geniculate ganglion or more distal regions along the intratemporal course of the facial nerve,but its pathogenesis remains poorly understood.Although a rare etiology of CSF fistulae of the temporal bone,there are significant clinical ramifications due to the risk of recurrent meningitis,difficulty in identifying the anatomic location of the CSF leak,and technical challenges associated with surgical repair.We present three clinical cases of arachnoid cysts within the geniculate fossa with or without CSF fistulization and provide histopathologic correlates of this rare clinical phenomenon from a human temporal bone collection.The pediatric and adult patients presented suggest differential pathophysiologic mechanisms associated with CSF fistulae.Temporal bone histology reveals atypical patterns of subarachnoid space extension in the fallopian canal that may underlie arachnoid cyst formation and overt CSF leak from the geniculate region.展开更多
基金supported by the National Natural Science Foundation of China(NSFC)Grant No.30600703 and No.81170911
文摘Objective Poreneephalic cyst presenting with otologie involvement is uncommon. Only a few eases have been reported. We report a rare case of cerebrospinal fluid （CSF） otorrhea caused by a massive porencephalic cyst encompassing the left temporal and occipital lobes. The CSF leak was repaired successfully using a transmastoid approach with facia, abdomen fat and fibrin glue to seal the osseous defects in the sinodural angle. A review of the literature concerning porencephalic cyst and CSF otorrhea is also presented.
文摘Cerebrospinal fluid fistulae occur when defects in dura, pla-arachnold or skull permit the cerebrospinal fluid escape from the subarachnoid space via anterior naris, nasopharynx or external acoustic meastus, Which is most commonly manifested as rhinorrhea or otorrhea,complicated by serious recurrent meningitis for months or years.This paper reports 20 cases of rhinorrhea and one of otorrhea, persisting longer than 3 months. All the cases were repaired successfully and there was no recurrence arter being followed up for 1 to 20 years.We compared various diagnostic methods and suggested a simple operative procedure.
文摘Cerebrospinal fluid(CSF)fistulae originating from the fallopian canal of the facial nerve is hypothesized to arise due to atypical patterns of subarachnoid space extension into the geniculate ganglion or more distal regions along the intratemporal course of the facial nerve,but its pathogenesis remains poorly understood.Although a rare etiology of CSF fistulae of the temporal bone,there are significant clinical ramifications due to the risk of recurrent meningitis,difficulty in identifying the anatomic location of the CSF leak,and technical challenges associated with surgical repair.We present three clinical cases of arachnoid cysts within the geniculate fossa with or without CSF fistulization and provide histopathologic correlates of this rare clinical phenomenon from a human temporal bone collection.The pediatric and adult patients presented suggest differential pathophysiologic mechanisms associated with CSF fistulae.Temporal bone histology reveals atypical patterns of subarachnoid space extension in the fallopian canal that may underlie arachnoid cyst formation and overt CSF leak from the geniculate region.
