World Neurosurg
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Case Reports
Overshunting-Associated Myelopathy (OSAM) in a Patient with Bilateral Jugular Vein Occlusion.
Overshunting-associated myelopathy (OSAM) is a very rare complication of ventricular shunt therapy, and only 11 previous cases have been reported in the literature. We report the successful surgical management of a case of OSAM in a patient with bilateral jugular vein occlusion and congenital hydrocephalus. ⋯ OSAM has to be considered according to the Monro-Kellie doctrine and is affected by an engorgement of the epidural cervical venous plexus, which can produce cervical myelopathy. Because it can be treated simply by increasing the shunt resistance, surgeons should be aware of the rarely detected overdrainage complication.
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Intracranial dermoid cysts are benign embryologic tumors. They occur most often in children and young adults. Infected intradural dermoid cyst with complete dermal sinus of posterior fossa is rare. The main feature of this dermal sinus is the continuity from the intradural cyst through the occipital bone to the skin. ⋯ Infected intradural dermoid cyst with complete dermal sinus of posterior fossa is rare, and a double dermal sinus has not yet published, to our knowledge.
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Aggressive vertebral hemangiomas are rare tumors of the spine. The treatment management strategy usually consists of vertebroplasty, radiation therapy, or, in rare cases of surgical strategy. ⋯ Here we demonstrate the usefulness of radiofrequency ablation technique as an alternative treatment, as well as robotic assistance for optimal placement of the ablation probe within the lesion.
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Fusion surgery for lumbar degenerative stenosis is an established treatment mode. Despite comparable patient-related outcomes and radiologic results, the necessity of adding interbody fusion to posterolateral fusion remains controversial. We aimed to compare the clinical and radiologic outcomes of posterolateral fusion and transforaminal interbody fusion techniques in degenerative lumbar stenosis with or without spondylolisthesis. ⋯ Both PLF and TLIF+PLF procedures were effective in ameliorating the symptoms of degenerative lumbar stenosis and spondylolisthesis. Although some radiologic parameters favor TLIF, this was not reflected in the clinical outcomes.
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Case Reports
Combined Diffuse Astrocytoma and Pleomorphic Xanthoastrocytoma Grade III Sharing IDH1 R132H Mutation.
Collision tumors are often difficult to distinguish from intratumoral heterogeneity in diffuse gliomas. ⋯ Collision tumors and combined neoplasms have been rarely described in the brain and only 4 similar articles report the synchronous occurrence of 2 primary gliomas. A review of the literature is proposed, focusing on criteria that could be used to discriminate them.