Objective:To compare and contrast our experience with middle cranial fossa approach (MFR) and transmastoid approach with capping of the dehiscence (TMR) of superior semicircular canal dehiscence and to determine guide...Objective:To compare and contrast our experience with middle cranial fossa approach (MFR) and transmastoid approach with capping of the dehiscence (TMR) of superior semicircular canal dehiscence and to determine guidelines to help guide management of these patients. Methods:All patients from 2005 to 2014 with symptomatic superior semicircular canal dehis-cence syndrome with dehiscence demonstrated on CT scan of the temporal bone who under-went surgical repair and had a minimum 3 months of follow up. Surgical repair via the MFR or TMR, preoperative CT temporal bone, preoperative, and postoperative cervical vestibular evoked myogenic potential (cVEMP) testing and anterior canal video head thrust testing (vHIT). Success of repair was stratified as complete success, moderate success, mild success, or failure based on resolution of all symptoms, the chief complaint, some symptoms, or no improvement, respectively. Results:A total of 29 ears in 27 patients underwent surgical repair of canal dehiscence. Com-plete or moderate success was seen in 71% of the MFR group compared to 80% of the TMR group. There were zero failures with the MFR group and no major intracranial complications.There were 2 failures out of 15 ears that underwent the TMR. Residual symptoms were most commonly vertigo or disequilibrium in the MFR and aural fullness or autophony in the TMR groups, respectively. MFR hospital stay was approximately 2 days longer. Average cVEMP threshold shifted 18 dB with surgical correction in the MFR group. A 29 dB average shift was seen in the TMR group. The MFR group had a significant reduction in their anterior canal gain compared to the TMR group. Conclusions:TMR is a less invasive alternative to MFR. However, in our series, we have not seen any intracranial complications (aphasia, stroke, seizures, etc.) in our MFR patients. Interest-ingly, vestibular symptoms were better addressed than audiological symptoms by the TMR sug-gesting its usefulness as a less invasive option for patients with primarily vestibular complaints. Residual auditory symptoms in TMR patients may be due to the flow of acoustic energy from the superior canal to the mastoid cavity through an incompletely sealed third window.展开更多
INFLAMMATORY myofibroblastic tumor（IMT）,alsoknown as inflammatory pseudotumor or plasma cellgranulomas,is an uncommon fibro-inflammatorylesion which is composed of inflammatory cells andmyofibroblastic spindle cells...INFLAMMATORY myofibroblastic tumor（IMT）,alsoknown as inflammatory pseudotumor or plasma cellgranulomas,is an uncommon fibro-inflammatorylesion which is composed of inflammatory cells andmyofibroblastic spindle cells.1Its pathogenesis is still un-known.The tumor commonly occurs in the lung,upperrespiratory tract,live,orbit,abdominal membrane,retro-peritoneum,and genitourinary tract.2-4It rarely involvesthe central nerve system,5,展开更多
In this study, we explored the operation options for middle cranial fossa arachnoid cysts （MCFAC）. One hundred and forty-nine patients who were operated for a symptomatic MCFAC between 1993 and 2006 in our hosptial ...In this study, we explored the operation options for middle cranial fossa arachnoid cysts （MCFAC）. One hundred and forty-nine patients who were operated for a symptomatic MCFAC between 1993 and 2006 in our hosptial were analyzed. Follow-up time ranged from 1 y to 14 y （mean=5.4 y）. All these patients were divided into three subgroups according to Galassi classification. Long-term outcome and complications were studied respectively. Fenestration （F） resulted in a more favorable long-term outcome and less complication for cysts of types I and Ⅱ, whereas a favorable outcome was noted in type Ⅲ patients who underwent cysto-peritoneal shunting （S）. We are led to conclude that Fenestration is suitable for cysts of types Ⅰ and Ⅱ （Galassi classification）, cysto-peritoneal shunting is better for cysts of type Ⅲ.展开更多
BACKGROUND Pseudogout is a benign joint lesion caused by the deposition of calcium pyrophosphate dihydrate crystals,but it is invasive.Pseudogout of the temporomandibular joint(TMJ)is uncommon,and it rarely invades th...BACKGROUND Pseudogout is a benign joint lesion caused by the deposition of calcium pyrophosphate dihydrate crystals,but it is invasive.Pseudogout of the temporomandibular joint(TMJ)is uncommon,and it rarely invades the skull base or penetrates into the middle cranial fossa.The disease has no characteristic clinical manifestations and is easily misdiagnosed.CASE SUMMARY We present two cases of tophaceous pseudogout of the TMJ invading the middle cranial fossa.A 46-year-old woman with a history of diabetes for more than 10 years was admitted to the hospital due to swelling and pain in the right temporal region.Another patient,a 52-year-old man with a mass in the left TMJ for 6 years,was admitted to the hospital.Maxillofacial imaging showed a calcified mass and severe bone destruction of the skull base in the TMJ area.Both patients underwent excision of the lesion.The lesion was pathologically diagnosed as tophaceous pseudogout.The symptoms in these patients were relieved after surgery.CONCLUSION Tophaceous pseudogout should be considered when there is a calcified mass in the TMJ with or without bone destruction.A pathological examination is the gold standard for diagnosing this disease.Surgical treatment is currently the recommended treatment,and the prognosis is good after surgery.展开更多
Facial nerve schwannoma involving the middle cranial fossa is quite rare, and its accurate diagnosis is very difficult before surgery. Here we present a case of schwannoma of the facial nerve at the middle cranial fos...Facial nerve schwannoma involving the middle cranial fossa is quite rare, and its accurate diagnosis is very difficult before surgery. Here we present a case of schwannoma of the facial nerve at the middle cranial fossa that was misdiagnosed previously at a local hospital and then cured in our hospital.展开更多
文摘Objective:To compare and contrast our experience with middle cranial fossa approach (MFR) and transmastoid approach with capping of the dehiscence (TMR) of superior semicircular canal dehiscence and to determine guidelines to help guide management of these patients. Methods:All patients from 2005 to 2014 with symptomatic superior semicircular canal dehis-cence syndrome with dehiscence demonstrated on CT scan of the temporal bone who under-went surgical repair and had a minimum 3 months of follow up. Surgical repair via the MFR or TMR, preoperative CT temporal bone, preoperative, and postoperative cervical vestibular evoked myogenic potential (cVEMP) testing and anterior canal video head thrust testing (vHIT). Success of repair was stratified as complete success, moderate success, mild success, or failure based on resolution of all symptoms, the chief complaint, some symptoms, or no improvement, respectively. Results:A total of 29 ears in 27 patients underwent surgical repair of canal dehiscence. Com-plete or moderate success was seen in 71% of the MFR group compared to 80% of the TMR group. There were zero failures with the MFR group and no major intracranial complications.There were 2 failures out of 15 ears that underwent the TMR. Residual symptoms were most commonly vertigo or disequilibrium in the MFR and aural fullness or autophony in the TMR groups, respectively. MFR hospital stay was approximately 2 days longer. Average cVEMP threshold shifted 18 dB with surgical correction in the MFR group. A 29 dB average shift was seen in the TMR group. The MFR group had a significant reduction in their anterior canal gain compared to the TMR group. Conclusions:TMR is a less invasive alternative to MFR. However, in our series, we have not seen any intracranial complications (aphasia, stroke, seizures, etc.) in our MFR patients. Interest-ingly, vestibular symptoms were better addressed than audiological symptoms by the TMR sug-gesting its usefulness as a less invasive option for patients with primarily vestibular complaints. Residual auditory symptoms in TMR patients may be due to the flow of acoustic energy from the superior canal to the mastoid cavity through an incompletely sealed third window.
文摘INFLAMMATORY myofibroblastic tumor（IMT）,alsoknown as inflammatory pseudotumor or plasma cellgranulomas,is an uncommon fibro-inflammatorylesion which is composed of inflammatory cells andmyofibroblastic spindle cells.1Its pathogenesis is still un-known.The tumor commonly occurs in the lung,upperrespiratory tract,live,orbit,abdominal membrane,retro-peritoneum,and genitourinary tract.2-4It rarely involvesthe central nerve system,5,
文摘In this study, we explored the operation options for middle cranial fossa arachnoid cysts （MCFAC）. One hundred and forty-nine patients who were operated for a symptomatic MCFAC between 1993 and 2006 in our hosptial were analyzed. Follow-up time ranged from 1 y to 14 y （mean=5.4 y）. All these patients were divided into three subgroups according to Galassi classification. Long-term outcome and complications were studied respectively. Fenestration （F） resulted in a more favorable long-term outcome and less complication for cysts of types I and Ⅱ, whereas a favorable outcome was noted in type Ⅲ patients who underwent cysto-peritoneal shunting （S）. We are led to conclude that Fenestration is suitable for cysts of types Ⅰ and Ⅱ （Galassi classification）, cysto-peritoneal shunting is better for cysts of type Ⅲ.
文摘BACKGROUND Pseudogout is a benign joint lesion caused by the deposition of calcium pyrophosphate dihydrate crystals,but it is invasive.Pseudogout of the temporomandibular joint(TMJ)is uncommon,and it rarely invades the skull base or penetrates into the middle cranial fossa.The disease has no characteristic clinical manifestations and is easily misdiagnosed.CASE SUMMARY We present two cases of tophaceous pseudogout of the TMJ invading the middle cranial fossa.A 46-year-old woman with a history of diabetes for more than 10 years was admitted to the hospital due to swelling and pain in the right temporal region.Another patient,a 52-year-old man with a mass in the left TMJ for 6 years,was admitted to the hospital.Maxillofacial imaging showed a calcified mass and severe bone destruction of the skull base in the TMJ area.Both patients underwent excision of the lesion.The lesion was pathologically diagnosed as tophaceous pseudogout.The symptoms in these patients were relieved after surgery.CONCLUSION Tophaceous pseudogout should be considered when there is a calcified mass in the TMJ with or without bone destruction.A pathological examination is the gold standard for diagnosing this disease.Surgical treatment is currently the recommended treatment,and the prognosis is good after surgery.
文摘Facial nerve schwannoma involving the middle cranial fossa is quite rare, and its accurate diagnosis is very difficult before surgery. Here we present a case of schwannoma of the facial nerve at the middle cranial fossa that was misdiagnosed previously at a local hospital and then cured in our hospital.
