Turk Neurosurg
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Dermoid cysts are rare benign congenital tumors comprising 1.1 % of the spinal tumors, with lumbosacral region and cauda equina being the common sites. Many cranial cases with spillage of cyst contents into the subarachnoid space have been reported. ⋯ However, there is no consensus for the treatment of the syrinx cavity. Observation of similar cases would give us more information about treatment options and the progression of these lesions.
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Matrix metalloproteinase 9 (MMP-9) has been shown to be a potential biomarker for outcome prediction after neuron damage. This study investigated whether MMP-9 could be used for outcome prediction after traumatic brain injury (TBI). ⋯ MMP-9 concentration in the CSF of TBI patients correlated with neurological outcome and may represent an early indicator for the prognosis of this condition.
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The chondroma originated in falx cerebri and dural convexity is very rare, less than 30 cases reported so far. Here, we report a case of 26-year old male, with a huge mass at fronto-parietal falx cerebri, who was misdiagnosed as parafalcine meningioma on preoperative MR imaging. ⋯ By reviewing the MR images of the patient, we find that the peripheral ring-like enhancement and intratumoral partial slight coral-like enhancement on contrast-enhanced T1 images might be the valuable MR features to differentiate from parafalcine meningioma. In addition, the tumor's pathogenesis and pathological characteristics were briefly discussed.
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To demonstrate the incidence of screw misplacement and revision rates in a group of 72 patients that underwent pedicle screw fixation for spinal pathologies using the conventional, fluoroscopy-guided open technique. ⋯ Conventional open technique in pedicle screw placement is a safe and sound method with its low and acceptable complication rates.
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To understand the mechanism of the gamma knife treating the trigeminal neuralgia. ⋯ The pain relief induced the gamma knife radiosurgery might be related with the atrophy of the trigeminal nerve root in Chinese patients with primary trigeminal neuralgia.