1,721,062 research outputs found
Ossification of the yellow ligament causing thoracic cord compression.
No full textOssification of the yellow ligament (OYL) is not infrequent in the cervical and lumbar regions but is very rare in the thoracic spine, with no more than 40 cases reported in the literature. We describe a 50-year-old male with progressive paraparesis and sensory dysfunction, secondary to OYL at T10-T11, studied by computed tomography (CT) and magnetic resonance imaging (MRI). Decompressive laminectomy and removal of the ligament resulted in marked clinical improvement. Patients with OYL may initially develop sensory dysfunction associated with leg weakness. This pathological entity can be well defined by CT and MRI, and surgery by decompressive laminectomy is advised for all cases. The OYL should be removed both posteriorly and laterally to the dural sac to obtain sufficient decompression of the spinal canal
The Role of Intraoperative Sonography in Reducing Invasiveness During Surgery for Spinal Tumors
No full textMetastasi cerebrali: protocolli clinico-diagnostici ed indicazioni al trattamento chirurgico
No full textIntraoperative sonography for spinal tumors. Correlations with MR findings and surgery.
No full textTo investigate the role of intraoperative ultrasonography during surgery for spinal tumors and the correlation between echographic, magnetic resonance and surgical findings.Twenty patients with spinal tumor, explored by MRI of the spine, have been treated with ultrasound-guided surgery. The ultrasound exploration has been performed during laminectomy on the dural surface in all cases and, after the dural opening, on the spinal cord surface for intramedullary tumors.In all patients the ultrasound exploration has allowed to exactly define the extent of the laminectomy, the dural opening and the myelotomy. Meningiomas were hyperechoic and homogeneous, with well defined margins and often visible hyperechoic dural attachment; neurinomas were less hyperechoic and less homogeneous than meningiomas. Intramedullary tumors showed hyperechoic solid and hypoechoic cystic-necrotic components, although a specific tissue characterization (tumor infiltration, gliosis, edema) is not possible.Intraoperative ultrasonography should be used routinely during surgery for spinal tumors in order to reduce the extent of the laminectomy, dural opening and myelotomy. A good correlation exists between signal intensity on T1-weighted images of MR, the echographic aspect of the tumor and the pathological findings at operation
Olfactory groove meningioma and multiple aneurysms. Case report.
No full textWe report a case of a patient with olfactory groove meningioma associated with multiple aneurysms. The association between intracranial aneurysms and meningiomas is infrequent and perhaps it is due to chance alone; many theories have been formulated to explain it. In the cases with both lesions, meningiomas are more frequently located at level of the convexity while aneurysms are more often located at level of the anterior cerebral-anterior communicating artery complex or at level of the middle cerebral artery
Giant intracranial varix associated with venous angioma and intracerebral hemorrhage.
No full textA rare case of giant cerebral varix with venous angioma and intracerebral hemorrhage, surgically treated with good outcome, is reported. Varices and venous angiomas are infrequent in the clinical practice and are usually asymptomatic. Giant venous varices are less rarely associated with vein of Galen aneurysms or high flow arteriovenous shunts, whereas isolated giant varices are exceptional. Association of varix and venous angioma has been reported only in three instances. The radiological diagnosis of the cerebral venous malformation is briefly discussed
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