The Rapid Progression of Myelopathy Due to Cervical Epidural Fluid Collection From Metastatic Tumor in the Cervical Lamina: A Case Report.

Various conditions can cause myelopathy due to cervical epidural fluid collection, including idiopathic cervical epidural hematoma, traumatic cervical epidural hematoma, infectious myelitis, epidural abscess, spinal cord infarction, post-traumatic cerebrospinal fluid (CSF) leakage, and epidural tumors. While physical compression from hematoma, abscess, or epidural tumors is common, and carcinomatous meningitis can cause CSF flow obstruction and accumulation leading to myelopathy, rapid progression of serous fluid collection causing myelopathy is rare. We report a case of myelopathy caused by rapid accumulation of epidural exudate from a metastatic tumor in the cervical lamina.

A Simplified Procedure for Intrathecal Baclofen Catheter Replacement Through a Granulation Tunnel Using a 16-Gauge Peripheral Vein Catheter.

Intrathecal baclofen (ITB) therapy is an established surgical treatment for spasticity. Long-term management of ITB may necessitate catheter replacement, which typically requires a new dural puncture. Although rare, complications such as cerebrospinal fluid leakage, nerve injury, and hemorrhage can occur with a new dural puncture.

Rare variant of cervical conjoined nerve root confirmed during full endoscopic cervical foraminotomy: illustrative case.

Background: Diagnosing cervical radiculopathy with root anomalies is difficult, as cervical nerve root anomalies are rare. Here, the authors report the rare case of a conjoined nerve root variant confirmed using full endoscopic cervical foraminotomy (FECF).

Observations: A 40-year-old female presented with painful numbness and paresis in the right upper limb.

A Simple Procedure of Epidural Electrode Lead Replacement through a Tissue Sheath in Spinal Cord Stimulation.

Spinal cord stimulation (SCS) is widely performed to treat several types of intractable chronic pain. To maintain lasting SCS, epidural electrode leads must be replaced sometimes due to problems like lead breakage. However, in lead replacement, guiding the new lead to the original position may be difficult because granulation tissue sheath forms around the lead.

Whole-exome sequencing in a Japanese multiplex family identifies new susceptibility genes for intracranial aneurysms.

Background: Intracranial aneurysms (IAs) cause subarachnoid hemorrhage, which has high rates of mortality and morbidity when ruptured. Recently, the role of rare variants in the genetic background of complex diseases has been increasingly recognized. The aim of this study was to identify rare variants for susceptibility to IA.

Cerebral vasospasm and hypoperfusion after traumatic brain injury: Combined CT angiography and CT perfusion imaging study.

Background: Timely identification of the cerebral perfusion abnormalities after traumatic brain injury (TBI) is highly important. The objective of this study was the evaluation of the post traumatic vasospasm and cerebral hypoperfusion with the serial combined CT angiography (CTA) and CT perfusion (CTP) imaging examinations.

Methods: The case series comprised 25 adult patients with closed TBI accompanied by various types of intracranial hematoma.

Identification of shared genomic aberrations between angiomatous and microcystic meningiomas.

Background: Angiomatous and microcytic meningiomas are classified as rare subtypes of grade I meningiomas by World Health Organization (WHO). They typically exhibit distinct histopathological features as indicated by their WHO titles; however, these angiomatous and microcystic features are often intermixed. Recently, angiomatous meningiomas were reported to show characteristic chromosomal polysomies unlike the other WHO grade I meningiomas.

[A Case of Segmental Arterial Mediolysis:Subarachnoid Hemorrhage Followed by Abdominal Bleeding].

We describe a case involving subarachnoid and intraperitoneal hemorrhage due to segmental arterial mediolysis(SAM). A 77-year-old female patient with sudden subarachnoid hemorrhage was immediately transferred to our institution. The hemorrhage was classified as grade 2 according to the World Federation of Neurosurgical Societies system.

A case report of adult cerebellar high-grade glioma with H3.1 K27M mutation: a rare example of an H3 K27M mutant cerebellar tumor.

Diffuse midline glioma, H3 K27M mutant, is newly recognized as a distinct category, which usually arises in the brain stem, thalamus or spinal cord of children, and young adults. The oncogenic H3 K27M mutation involves H3.3 (encoded by H3F3A) or H3.

Nonspastic hemifacial spasm confirmed by abnormal muscle responses.

Background: Hemifacial spasm is usually diagnosed by inspection which mainly identifies involuntary movements of orbicularis oculi. Assessing abnormal muscle responses (AMR) is another diagnostic method.

Case Description: We report a case of left hemifacial spasm without detectable involuntary facial movements.

[Radiation-Induced Malignant Peripheral Nerve Sheath Tumor of the High Cervical Spine].

Unlabelled:

Case: A 30-year-old woman presented with posterior cervical pain and left-sided omalgia. The patient had a history of non-Hodgkin's lymphoma for which she had received prophylactic whole-brain irradiation(including at the upper cervical level)17 years previously. A magnetic resonance imaging(MRI)scan obtained 1 month previously showed an intradural extramedullary mass lesion at the left C1/2 level.