Arachnoid Membrane Suturing for Prevention of Subdural Fluid Collection in Extracranial-intracranial Bypass Surgery.

Objective: Water-tight closure of the dura in extracranial-intracranial (EC-IC) bypass is impossible because the superficial temporal artery (STA) must run through the dural defect. Consequently, subdural hygroma and subcutaneous cerebrospinal fluid (CSF) collection frequently occur postoperatively. To reduce these complications, we prospectively performed suturing of the arachnoid membrane after STA-middle cerebral artery (STA-MCA) and evaluated the clinical usefulness.

Intradermal melanocytic nevus with lymphatic nevus cell embolus: A case report.

The current study presents a rare case of intradermal melanocytic nevus with lymphatic nevus cell embolus. A 26-year-old male presented with a slowly enlarging, pigmented nodule on the back, measuring 1 cm in diameter. Histological observations of the lesion were typical of an intradermal melanocytic nevus.

Pterional-subolfactory Approach for Treatment of High Positioned Anterior Communicating Artery Aneurysms.

Objective: The purpose of this study is to compare the surgical outcomes of pterional-subolfactory approach for the high positioned anterior communicating artery (ACoA) aneurysm with the conventional pterional approach.

Methods: Between February 2005 and December 2012, 463 ACoA aneurysms were surgically treated in our institution. Forty eight high positioned ACoA aneurysms were treated with pterional-subolfactory or conventional pterional approach.

Evaluation of probability of survival using trauma and injury severity score method in severe neurotrauma patients.

Objective: Despite several limitations, the Trauma Injury Severity Score (TRISS) is normally used to evaluate trauma systems. The aim of this study was to evaluate the preventable trauma death rate using the TRISS method in severe trauma patients with traumatic brain injury using our emergency department data.

Methods: The use of the TRISS formula has been suggested to consider definitively preventable death (DP); the deaths occurred with a probability of survival (Ps) higher than 0.

Value of indocyanine green videoangiography in deciding the completeness of cerebrovascular surgery.

Objective: Recently, microscope-integrated near infrared indocyanine green videoangiography (ICG-VA) has been widely used in cerebrovascular surgery because it provides real-time high resolution images. In our study, we evaluate the efficacy of intraoperative ICG-VA during cerebrovascular surgery.

Methods: Between August 2011 and April 2012, 188 patients with cerebrovascular disease were surgically treated in our institution.

How to minimize ischemic complication related to swollen temporalis muscle following indirect revascularization surgery in moyamoya disease: a technical report.

Background: There are several reports in the literature of postoperative ischemic events due to swelling of the temporalis muscle after indirect revascularization surgery. Here, we report our surgical technique for preventing ischemic events during the acute postoperative recovery period in moyamoya patients.

Material And Methods: We used various types of titanium mesh to cover the bony defect area in 8 patients (10 operations) with moyamoya disease.

Surgical treatment of giant serpentine aneurysm of A2-a3 segment distal anterior cerebral artery : technical case report.

Objective: To report our surgical experience using in situ end-to-side bypass for giant serpentine distal anterior cerebral artery aneurysm, unsuitable for microsurgical clipping.

Methods: A 49-year-old woman presented with headache and intermittent loss of consciousness. The brain computed tomography scan revealed a partially calcified mass in the interhemispheric fissure.

Intracranial Meningiomas, WHO Grade Il : Prognostic Implications of Clinicopathologic Features.

Objective: Intracranial meningiomas are primarily benign tumors with a good prognosis. Although WHO grade II meningiomas are rare (2-10%), WHO grade II meningiomas have higher recurrence and mortality rates than benign. We evaluated the patient recurrence rate and investigated the prognostic factors of WHO grade II meningiomas.

Surgical results after unilateral laminectomy for the removal of spinal cord tumors.

Objective: To reduce the risk of postoperative spinal instability or deformity, unilateral laminectomy (UL) has been recommended to remove spinal space-occupying lesions. The purpose of this study was to determine whether there were any advantages of UL for removal of spinal cord tumors.

Methods: From May 1995 to May 2010, 94 patients with spinal cord tumors, who underwent tumor removal via UL in our institute, were enrolled in this study.

Possible role of matrix metalloproteinase in osteolytic intracranial meningiomas.

Objective: Abnormalities of the bone are frequently encountered in patients with meningioma, and hyperostosis and endostosis are common bone alterations in these tumors. Extensive bony destruction is very unusual in patients with meningioma. We report six cases of intracranial meningioma associated with an osteolytic lesion of the skull and discuss the underlying mechanisms that may be responsible for bone destruction in patients with meningioma.

A nodular syphilid presenting as a pseudolymphoma: mimicking a cutaneous marginal zone B-cell lymphoma.

Syphilis has been referred to as the great imitator, the great mimic, and the great masquerader. It often presents with clinical and histological findings similar to many other dermatological conditions. We report a patient presenting with nodular plaques, a rare form of secondary syphilis.