World Neurosurg
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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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To determine the clinical and radiologic outcome of patients with acoustic neuroma (AN) treated with linear accelerator (LINAC) or CyberKnife-based stereotactic radiosurgery with respect to tumor control, preservation of serviceable hearing, and toxicity. ⋯ Our study shows that in AN, high tumor control and considerable hearing preservation rates can be achieved by single-dose radiosurgery at low toxicity rates, resulting in a positive impact on long-term clinical outcome.
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Primary elements of surgical treatment of cavernous angiomas (CAs) are precise lesion identification and optimal trajectory determination. Navigation techniques allow for better results compared to microsurgery alone. In this study, we examined the benefits of intraoperative ultrasound (IOUS) use as an adjunct to standard localization systems. ⋯ IOUS is a valid tool for the intraoperative identification of CAs. Implementation of standard localization methods with IOUS guidance was associated with complete resection in all cases, without increasing surgical time. Compared with microsurgery without IOUS guidance, long-term functional outcomes showed better trends, and the epilepsy-free rate was significantly higher.
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Persistent trigeminal artery is the most frequent embryonic communication between the vertebrobasilar and carotid systems. To the best of our knowledge, posttraumatic trigeminal-cavernous fistula is rarely reported in the literature. ⋯ Even though preservation of the parent artery is generally considered a desirable goal in fistula treatment, in special cases such as Salzmann type 2 anatomy plus a unique fistulous orifice accompanied by external carotid-cavernous fistula, it is required to embolize the persistent trigeminal artery and cavernous sinus.
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This is a case report of a 34-year-old man with hereditary multiple exostoses who presented with gradual tetraparesis. Neuroimaging evaluation revealed an important posterior spinal cord compression by a C3 bony formation. ⋯ Histopathologic examination of the intraspinal lesion confirmed the diagnosis of benign osteochondroma. The patient returned to a normal life without evidence of recurrence at 2-year follow-up.