An Analysis of Temporal Trend of Incidence of Post-Resection Cerebrospinal Fluid Diversion in Pediatric Posterior Fossa Tumor Patients and the Predictive Factors.

Objective: We aim to find the temporal trend of incidence of post-resection cerebrospinal fluid (CSF) diversion (ventriculoperitoneal [VP] shunt/endoscopic third ventriculostomy [ETV]) in pediatric posterior fossa tumor (pPFT) patients with no pre-resection CSF diversion and the possible clinical predictors.

Methods: We reviewed 108 operated children (age ≤16 years) with PFTs, from 2012 to 2020, at a tertiary care center. Patients with preoperative CSF diversion (n = 42), lesions within cerebellopontine cistern (n = 8), and those lost to follow-up (n = 4) were excluded.

C3 segmental vertebral artery and its surgical implication in craniovertebral junction anomalies: Insights from two cases.

A spectrum of vertebral artery (VA) anomalies have been described with or without an associated congenital craniovertebral junction (CVJ) anomalies. C3 segmental VA, where the VA enters the dura at the level of C2/3 intervertebral foramen is an extremely rare anomaly. We report two cases of congenital CVJ anomaly (irreducible in one with C2/3 fusion and reducible in the other; without any subaxial fusion but with articular agenesis at C2/3 joint on the anomalous artery side).

Type I Chiari Malformation Without Concomitant Bony Instability: Assessment of Different Surgical Procedures and Outcomes in 73 Patients.

Objective: Posterior fossa decompression is the treatment of choice in type 1 Chiari malformation (CM-1) without bony instability. Although surgical fixation has been recommended by a few authors recently, comparative studies to evaluate these treatment strategies using objective outcome tools are lacking.

Methods: Seventy-three patients with pure CM-1 (posterior fossa bony decompression [PFBD], n = 21; posterior fossa bony and dural decompression [PFBDD], n = 40; and posterior fixation [PF], n = 12) underwent a postoperative outcome assessment using Chicago Chiari Outcome Score (CCOS).

Cerebellopontine Angle Epidermoids: Comparative Results of Microscopic and Endoscopic Excision Using the Retromastoid Approach".

 Densely packed neurovascular structures, often times inseparable capsular adhesions and sometimes a multicompartmental tumor extension, make surgical excision of cerebellopontine angle epidermoids (CPEs) a challenging task. A simultaneous or an exclusive endoscopic visualization has added a new dimension to the classical microscopic approaches to these tumors recently.  Eighty-six patients (age: 31.

Temporal lobe angiocentric glioma with oligodendroglioma-like areas: a rare association of an uncommon tumor. A case report with review of literature.

Background: Angiocentric glioma (AG) is a relatively uncommon clinico-pathological entity that presents in childhood. Angiocentric glioma displays various histopathological features which resemble cortical ependymoma, astroblastoma, and pilomyxoid astrocytoma and schwannoma. The astrocytes in angiocentric glioma appear peculiarly elongated, bipolar in shape, and characteristically arranged around blood vessels.

Coexistent Cerebral Cavernous Malformation and Developmental Venous Anomaly: Does an Aggressive Natural History Always Call for Surgical Intervention?

Coexistence of cerebral cavernous malformations (CMs) and developmental venous anomaly (DVA) represents the most common form of mixed intracranial vascular malformations. Existing literature supports not only a possible causative role of DVA for CMs but also a potentially detrimental effect on an associated CM, increasing the chances of hemorrhagic complications and growth in the latter. A 52-year-old gentleman presented to us with a 17-year long history of simple motor seizures on the left faciobrachial region.

Pathologic Laughter as an Early and Unusual Presenting Symptom of Petroclival Meningioma: a Case Report and Review of the Literature.

Background: Pathologic laughter is inappropriate, involuntary, and unmotivated laughter episodes that may or may not be associated with mirth or amusement. Although associated with many diffuse brain pathologies, its association with intracranial focal mass lesions causing ventrolateral brainstem compression, like petroclival meningioma, is very rare. The exact pathophysiology of this interesting and unusual clinical symptom is unknown, but probably involves disinhibition and release of the so-called coordination center located in the upper brainstem due to compression by the tumor.

Intracranial Peripheral Primitive Neuroectodermal Tumor Arising from the Clivus with Intracranial Metastasis in an Elderly Woman: Case Report and Review of the Literature.

Background: Intracranial peripheral primitive neuroectodermal tumors (pPNETs) are rare lesions, accounting for only 1% of all pPNETs, and usually arise from bone and soft tissue. These tumors primarily affect young patients (<30 years old) and rarely affect older patients. The common intracranial locations of these lesions are frontal dura and tentorium.