Introduction Tumors arising from the intradural extramedullary (IDEM) spinal canal reflect a wide variety of histopathologies. With few exceptions, however, these tumors are histologically benign and amenable to complete surgical resection. Long-term tumor control or cure with preservation or improvement…
Recent advances in complex spinal surgery have helped foster the increased number of cervical spine procedures that are using a bidirectional approach. This is done for decompression of the neural elements, biomechanical stresses, and to influence the fusion ability of…
The term spinal dysraphism describes many different forms of congenital malformations of the neural tube. Table 74.1 classifies dysraphic malformations according to accepted theories of embryogenesis and conveniently divides most of them into primary and secondary neurulation lesions, plus an…
The portion of the proximal intradural internal carotid artery (ICA) adjacent to the anterior clinoid process (ACP) is called the paraclinoid segment. Aneurysms arising from the ICA between the roof of the cavernous sinus and the origin of the posterior…
Introduction Surgical treatment of cerebrovascular disorders with cerebral revascularization procedures has remained a formidable task for neurosurgeons for centuries. Despite remarkable advances in medical management and noninvasive procedures, cerebrovascular revascularization with extracranial-intracranial (EC-IC) bypass procedures has withstood the test of…
The majority of tumors of the lateral and third ventricles are benign or low-grade lesions. Because of their relatively slow growth rate, these lesions may reach several centimeters in size before patients present with neurologic dysfunction. The most common clinical…