Serum C-reactive protein value on day 14 as a possible prognostic factor of aneurysmal subarachnoid hemorrhage.

Objective: Serum C-reactive protein (CRP), as a reflection of early brain injury at onset, is a prognostic factor in aneurysmal subarachnoid hemorrhage (aSAH). However, in some severe cases, patients exhibit a good prognosis despite their elevated serum CRP level. Therefore, we examined the relationship between serum CRP transitions in the acute phase of aSAH and the prognosis.

Convexity Dural Arteriovenous Fistula without Cortical Venous Reflux Presenting with Pure Acute Subdural Hematoma.

Hemorrhagic changes in a dural arteriovenous fistula are typically associated with cortical venous reflux and occur as intracerebral or subarachnoid hemorrhages. A convexity dural arteriovenous fistula (DAVF) usually flows directly into the cortical veins and exhibits cortical venous reflux. Herein, we report a rare case of a convexity DAVF without cortical venous reflux presenting with a pure acute subdural hematoma.

Preoperative Rehearsal Sketch for Cerebral Aneurysm Clipping Improves the Accuracy and the Safety of the Surgical Procedure.

Objective: With advances in endovascular therapy, the number of cerebral aneurysm clippings has been decreasing. However, some patients are indicated for clipping surgeries. In such circumstances, preoperative simulation is important for the safety and educational aspects of the operation.

Primary central nervous system other iatrogenic immunodeficiency-associated lymphoproliferative disorders presenting as extraosseous plasmacytoma with a progressive clinical course: A case report and literature review.

Other iatrogenic immunosuppressive-associated lymphoproliferative disorders (OIIA-LPDs) rarely occur in the central nervous system (CNS). Additionally, they almost always present as lymphoma and withdrawal by cessation of immunosuppressive treatment. We report a case of primary CNS OIIA-LPD that presented as extraosseous plasmacytoma (EP) with a progressive clinical course in spite of immunosuppressive treatment cessation.

Pre-hospital portable monitoring of cerebral regional oxygen saturation (rSO) by ambulance personnel during cardiopulmonary resuscitation: A prospective observational analysis of 87 cases in Osaka city, Japan.

Background: Regional cerebral oxygen saturation (rSO) is a non-invasive method of measuring cerebral perfusion; However, serial changes in cerebral rSO values among out-of-hospital cardiac arrest (OHCA) patients in pre-hospital settings have not been sufficiently investigated. We aimed to investigate the association between the serial change in rSO pattern and patient outcome.

Methods: We evaluated rSO in OHCA patients using portable monitoring by emergency life-saving technicians (ELTs) from June 2013 to December 2019 in Osaka City, Japan.

IDH-Mutant Astrocytoma With Chromosome 19q13 Deletion Manifesting as an Oligodendroglioma-Like Morphology.

Partial deletions in chromosomes 1p and 19q are found in a subset of astrocytic tumors; however, it remains unclear how these alterations affect their histological features and prognosis. Herein, we present 3 cases of isocitrate dehydrogenase (IDH)-mutant astrocytoma with chromosome 19q13 deletion. In the first case, the primary tumor harbored an IDH1 mutation with chromosome 1p/19q partial deletions, which covered 19q13 and exhibited a durable initial response to radiotherapy and temozolomide (TMZ) treatment.

Spinal Cord Infarction after Mechanical Thrombectomy for Acute Basilar Artery Occlusion: A Case Report and Review of the Literature.

Objective: We report a case of spinal cord infarction following mechanical thrombectomy for acute basilar artery occlusion, and describe the pathophysiological mechanism of spinal cord infarction and its possible prevention.

Case Presentation: A 70-year-old man developed dysarthria and left-sided sensory impairment and was then diagnosed with acute basilar artery occlusion. Mechanical thrombectomy was performed using a 6-Fr guiding sheath via the left vertebral artery (VA).

Chronic encapsulated intracerebral hematoma associated with cavernous angioma--case report.

An 80-year-old male presented with a chronic encapsulated intracerebral hematoma (CEIH) with surrounding edema under the right frontal lobe manifesting as slow exacerbation of disturbance of orientation and gait. He had a history of cerebral infarction with an asymptomatic cavernous angioma in the right frontal lobe. The CEIH was diagnosed as bleeding from the cavernous angioma, and surgical removal was performed.

Ciliated craniopharyngioma--case report and pathological study.

Background: Craniopharyngioma has two subtypes: adamantinomatous and squamous-papillary. Squamous-papillary craniopharyngioma may develop from remnants of the craniopharyngeal duct, anterior pituitary cells with squamous metaplasia, suprasellar epidermoid cyst, or Rathke cleft cyst.

Aim: While ciliated craniopharyngioma is considered to represent a transitional stage between Rathke cleft cyst and squamous-papillary craniopharyngioma, ciliated craniopharyngioma following Rathke cleft cyst at the same site has not previously been described.

Inflammatory pseudotumor of the choroid plexus. Case report.

The authors report a case of inflammatory pseudotumor that developed in the choroid plexus of the lateral ventricle. The patient was a 73-year-old man who had undergone surgery for rectal cancer at another hospital 5 years earlier. He was referred to the authors' department, with his chief symptoms consisting of disorientation, right hemiparesis, and gait disorder that had gradually developed during the preceding month.

Endodermal cyst ventral to the lower brain stem.

A 28-year-old woman presented with a rare case of endodermal cyst located ventral to the lower brain stem manifesting as recurrent aseptic meningitis. Computed tomography and magnetic resonance imaging demonstrated a cystic mass located ventral to the lower brain stem and extending from the prepontine to the upper cervical (C-2) cistern. The lesion was totally removed through a retrosigmoid craniotomy and C1-2 hemilaminectomy.

Combined pre- and retrosigmoid approach for petroclival meningiomas with the aid of a rotatable head frame: peri-auricular three-quarter twist-rotation approach: technical note.

We used the combined subtemporal presigmoid and suboccipital retrosigmoid multidirectional approach with the aid of a rotatable head frame (periauricular three-quarter twist-rotation approach) in 20 cases of petroclival meningiomas. Patients were placed in the lateral decubitus (park-bench) position. The head is twisted, rotated, and positioned 30 degrees face down in the Sugita rotatable head frame.

Plasma cell myeloma of the skull base: report of two cases.

Plasma cell myeloma (PCM) of the skull base is rarely encountered in neurosurgical practice. PCM has a wide spectrum of pathology, including a quite benign, solitary plasmacytoma (SPC), and an extremely malignant, multiple myeloma (MM) at the two ends of the spectrum. We have described two patients with PCM of the skull base, of which one harbored SPC, and the other progressed to MM.

[A case of post-traumatic pseudoaneurysm on the posterio meningeal artery].

A case is reported of post-traumatic delayed appearance of a pseudoaneurysm on the posterior meningeal artery. In the immediate post-traumatic stage, the patient had mild disturbance of consciousness, mild subarachnoid hemorrhage, and mid-line skull fracture of the posterior cranial fossa. At 15 hours after the trauma, the patient suddenly developed deep coma and respiratory arrest.