World Neurosurg
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A neuroendoscopic biopsy has become common for the diagnosis of ventricular tumors. However, its utility in patients with germ cell tumors (GCTs) has not been well discussed. We examined the usefulness and pitfalls of neuroendoscopic biopsies of intraventricular GCTs at a single institution. ⋯ Neuroendoscopic biopsies are safe and useful for obtaining reliable histologic diagnoses in the management of GCTs. However, for GCTs with mixed histology, biopsies are susceptible to diagnostic errors, especially missing detecting a component of teratoma.
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To elucidate the clinical features of patients with hemorrhagic moyamoya disease (MMD) in China. ⋯ A 1-peak pattern in age distribution and mild female dominance in sex distribution were observed in patients with hemorrhagic MMD. Rebleeding tends to be common within 6 years after the first bleeding; however, some cases of rebleeding occur after a long period. Furthermore, the second bleeding episode was characterized frequently by a change in hemisphere and the type of bleeding. Early surgical treatment in both hemispheres is recommended.
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To characterize the clinical features of patients with neurofibromatosis type 2 (NF2) and determine prognostic risk factors for progressive disabilities. ⋯ The Japanese NF2 population has heterogeneous clinical features. Risk factors for progressive disability include younger age of onset, positive family history, positive treatment history, and specific neurologic deficits.
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To report the initial and long-term remission rates and related factors, secondary treatments, and outcomes of a series of patients with Cushing disease (CD). ⋯ Life-long follow-up for patients with CD seems essential. Undetectable tumors on MRI before TSS and high Ki-67 immunopositivity were found as risk factors for tumor recurrence.
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Neurosurgical application of indocyanine green (ICG) videography before performing a dural opening, known as transdural ICG videography, has been used during surgery of meningiomas associated with venous sinuses as well as cranial and spinal arteriovenous malformations. However, its use for a superficial temporal artery (STA)-to-middle cerebral artery (MCA) bypass has not been reported. ⋯ Transdural ICG videography for atherosclerotic steno-occlusive disease facilitates modifications during STA-MCA bypass procedures. Recognition of the proper recipient cortical arteries before a dural incision allows the neurosurgeon to perform a tailored dural incision and extension of the bone window, although the contribution to surgical outcome has yet to be determined.