World Neurosurg
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Review Case Reports
Rosette-forming glioneuronal tumor originating from the spinal cord: report of two cases and literature review.
Rosette-forming glioneuronal tumor (RGNT) is a recently recognized and rarely encountered tumor occurring in the fourth ventricle. RGNT was first described as a new entity for the distinct clinicopathologic features by Komori et.al. in 2002. Histologically, it is composed of 2 distinct features: a glial component, resembling pilocytic astrocytoma, and a neurocytic component forming neurocytic rosettes and/or perivascular rosettes. ⋯ Surgery is the preferred treatment for RGNT. We do not recommend to implement adjuvant radiotherapy and chemotherapy in these patients except the invasive or recurrent tumors. Further examination and routine follow-up should be recommended to estimate the long-term prognosis.
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Ruptured middle cerebral artery (MCA) aneurysms usually lead to subarachnoid hemorrhage (SAH), and several cases have shown concomitant intrasylvian or intracerebral hematomas. The objective of this study was to compare the clinical and radiographic characteristics with their different outcomes. ⋯ In our series, the prognosis of patients with ICH was worse than that of patients with ISH. Early discrimination of these 2 types of hematoma helps to predict future outcome; an angle (between the pointing direction of aneurysm and the MCA trunk) between 109.0°and 216.0° is associated with ISH, whereas aneurysm with an angle beyond this range suggests ICH.
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Review Case Reports
Bilateral Ossified Chronic Subdural Hematoma Presenting As Diabetes Insipidus- A Case Report and Literature Review.
Calcified chronic subdural hematomas are an occurrence rarely seen in neurosurgical clinical practice. And when they occur bilaterally, the radiologic image they present is fascinating, as is the clinical presentation, but their management may be challenging. ⋯ Due to the rarity of this pathology, the management protocol is not well defined, though there have been quite a few papers on this condition. This review article gathers information published over the years on this rare entity to suggest a treatment protocol.
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Multicenter Study
Management of Type II Odontoid Fractures: Latin American Spine Centers Experience.
To analyze characteristics of type II odontoid fracture (TII-OF), including clinical and radiographic factors, that influence surgical planning in 8 Latin American centers. ⋯ The treatment of choice for TII-OF in 8 Latin American trauma centers was surgery through an anterior approach using screw fixation. Posterior segmental C1-C2 fixation was indicated when distance between bone fragments was >2 mm and in symptomatic patients with nonunion.
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Case Reports
Detection of a Rare Complication of Endovascular Treatment for Brain AVM by Echocardiography.
A brain arteriovenous malformation (AVM) is a congenital malformation of the vascular system, in which an abnormal short circuit (vascular malformation) connects cerebral arteries and veins. When the brain AVMs are diagnosed, the majority of them must be closed with surgical or endovascular treatment, because only a small portion of the brain AVMs remain asymptomatic during the patient's life. ⋯ Previously known complications of Onyx usage are bleeding and neurologic deficits. We report a young man with a rare complication of Onyx injection, clinically silent distal embolization to the heart chamber and pulmonary circulation, discovered incidentally with echocardiography.