Extra-axial primary meningeal pleomorphic xanthoastrocytoma: a case report.

Pleomorphic xanthoastrocytoma (PXA) is a rare low-grade glial neoplasm of the central nervous system accounting for less than 1% of all astrocytomas. Similar to other gliomas, it can rarely arise from glial nests in the meninges, manifesting as an extra-axial mass mimicking a meningioma. Extra axial PXA is an extremely rare entity. Therefore, there are no standardized guidelines. In this article, we report the fourth case, so far, of a solitary primary extra-axial PXA mimicking a meningioma in a 23-year-old woman who presented with temporal seizures and features of raised intracranial pressure. Through this case, we tried to discuss all treatment options.

Pediatric head injuries: particularities and neurosurgical experience in a lower-middle income country.

PURPOSE: To the best of our knowledge, this is the first study conducted in Tunisia on the neurosurgical management of child cranial trauma. The objectives of the present work were to identify the causes of pediatric head injuries, explore epidemiological and clinical specificities, and analyze the short- and long-term postoperative evolution. METHODS: A retrospective review was conducted on one hundred children with head injuries over a five-year period at one of the largest neurosurgery departments in Tunisia. The collected data encompassed demographic information, clinical presentation features, neuroimaging characteristics, surgical management, complications, and outcomes. RESULTS: Over a five-year period, we have found 118 children who have undergone surgery, representing an annual incidence of twenty-four children per year. The average age was 10 years. Falls emerged as the primary cause of childhood head injuries in our series, followed by road traffic accidents. The most frequently encountered initial sign was the loss of consciousness (52%), followed by headaches (28%), vomiting (25%), and seizures (8%). The average time between the accident and admission to the operating unit was 10 h. Various neurosurgeries were performed, with the evacuation of an epidural hematoma being the most common procedure. At a median follow-up of 24 months, the outcomes were favorable in 88% of cases. CONCLUSION: The main prognostic factors for head trauma in children included age, circumstances of the accident, association with polytrauma, the initial Glasgow Coma Scale, the nature of the initial cerebral lesions, and the timeliness and quality of initial management.

An unusual occurrence of autoimmune pancreatitis after gam-Covid-Vac (Sputnik V): A case report and literature review.

The safety profile of the Sputnik V vaccine is generally reassuring. Nevertheless, an enhanced risk of new-onset of immune-mediated diseases has been increasingly reported following the adenoviral-based Covid-19 vaccine, including inflammatory arthritis, Guillain-Barré syndrome, optical neuromyelitis, acute disseminated encephalomyelitis, subacute thyroiditis and acute liver injury as well as glomerulopathy. However, no case of autoimmune pancreatitis has been reported yet. Herein, we describe a case of type I autoimmune pancreatitis that may be due to the Sputnik V Covid-19 vaccine.

Apoplexy in pituitary metastasis revealing a lung carcinoma.

Pituitary metastasis (PM) is an uncommon manifestation of systemic malignant tumours. It is the least common site of intracranial metastases. As PM has no clinical or radiological pathognomonic features, their diagnosis is challenging. Herein, we present a rare case of a PM unveiling lung cancer. A 60-year-old male with no medical history of malignancy was admitted with a sudden headache, retro-orbital pain, and a severe loss of both eyes' visual acuity. After proper investigations and endoscopic resection of the sellar mass, the diagnosis was confirmed to be pituitary metastasis of lung carcinoma. PM can be the initial presentation of an otherwise unknown malignancy. Their diagnosis and management are complex and depend on many factors. Endoscopic surgical resection provides histopathological proof, helps with symptomatic relief, and improves the quality of life but has no effect on survival.

Immunoglobulin G4-related disease presenting as an intracranial mass extended from the infratemporal fossa.

Background: Neurological manifestations in immunoglobulin G4-related diseases (IgG4-RD) are rare and documented in <2% of cases. It commonly involves pachymeninges forming hypertrophic pachymeningitis and rarely forms tumor-like masses. Case Description: We present our experience with a biopsy-proven case of IgG4-RD presenting with an intracranial extradural tumor-like mass infiltrating the temporal lobe. The patient was treated with high doses of corticosteroids followed by slow tapering. The neurological manifestations gradually improved and resolved after 2 months with a cerebral MRI showing a significant reduction in the tumoral size. Conclusion: When it comes to intracranial mass, IgG4-RD neuropathy is one of the rarest differential diagnoses for the central nervous system tumors. Early recognition of IgG4-RD and appropriate establishment of its long-term treatment may avoid unnecessary investigations and morbidity.

Spinal clear cell meningioma without dural attachment: a case report and literature review.

Clear cell meningiomas (CCM) are a very rare histologic subtype of meningioma usually affecting younger patients. The reported data on spinal CCM are extremely rare. Until today, only 89 cases have been reported. Furthermore, CCM without dural attachment is even rarer since only 19 cases have been reported in English literature. In this article, we present the twentieth case of a spinal CCM without dural attachment. Our patient was a 58-year-old female who was presented with pain in her lower back and bilateral sciatica for 6 months. Magnetic resonance imaging showed an intra-dural well-demarcated lesion at L3. Via a posterior approach, total resection was possible due to the lack of dural adhesion of the tumor. Histologic diagnosis was clear cell meningioma.

Remote cerebellar hemorrhage after the evacuation of a subdural hematoma: a case report.

Remote intracranial hemorrhage is postoperative bleeding that occurs away from the surgical site. Remote cerebellar hemorrhage (RCH) is a cerebellar hemorrhage that may occur in 0.04-0.8% of cases after supratentorial and spinal procedures. We report a case of a 73-year-old male who developed signs of increased intracranial pressure two days after the evacuation of a subdural hematoma. Brain computed tomography showed RCH with the "zebra sign" and triventricular hydrocephalus that indicated the placement of external ventricle drain in emergency. Therefore, surgeons must pay special attention to this rare postoperative complication because it can be devastating in terms of patient outcome especially due to its possible complications requiring surgical treatment.

A case report of a Cerebellopontine angle lipoma revealed by vertigo.

Cerebellopontine angle (CPA) lipoma is an extremely rare lesion representing only 0.1% of all the CPA tumors. We present a case of a 56-year-old woman with a 6-month history of vertigo. Cerebral MRI showed a left CPA lipoma. The patient was managed conservatively.

Primary mucinous adenocarcinoma of the orbit: A rare clinical entity.

Primary mucinous adenocarcinoma is an exceptionally rare neoplasm with a propensity for local recurrence and metastasis. We report the second case in the world literature of a primary mucinous adenocarcinoma of the orbit in a 66-year-old man suffering from pain, progressive protrusion of left eye, and a deep drop in vision on the left for several weeks. His first external examination revealed significant proptosis with downward displacement of the left globe with no signs of lagophthalmos. A limitation of abduction was also noted. A CT of the orbit with and without contrast showed intra- and extra-conical solid expansive process. MRI of the orbit with contrast and without contrast has shown a process of the supero-internal angle of the left orbit. The patient was operated via a combined approach, and complete enucleation was done. The final pathologic diagnosis was mucinous adenocarcinoma of the orbit. The postoperative neuroimaging showed a complete resection of the tumor. The patient is referred for adjuvant radiotherapy. A CT of the orbit was made 3 months postoperatively and did not show any local recurrence.

Dumbbell-shaped solid-cystic hypoglossal schwannoma: An unusual case report.

Hypoglossal Schwannomas are extremely rare benign slow-growing neoplasms, which originate from the 12th cranial nerve. To date, and to the best of our knowledge, only 40 cases of dumbbell-shaped Hypoglossal Swchannomas have been published in the world literature. We report our experience with a 66 years old male patient, who was diagnosed with a solido-cystic lesion at the right cerebello-pontine angle arising from XIIth cranial nerve. He was treated with surgery via midline suboccipital approach which led to sub-total removal of the tumor and improvement of the symptoms within 3 months. This case highlights the importance of an accurate suspicion diagnosis of hypoglossal schwannoma as well as the treatment options including surgery and radiosurgery.

Hydatid cyst in the third ventricle of the brain: case report of an exceptionally rare condition.

Hydatid disease is an endemic zoonotic disease caused by the cestode Echinococcus multilocularis and Echinococcus granulosus. Intra-ventricular hydatid cysts are extremely rare. Even more rarely, and to the best of our knowledge, only three cases of third ventricle involvement have been reported. Herein, we present the fourth case of an intraventricular hydatid cyst in a pediatric patient located in the third ventricle. It is about a 7-year-old girl, of a rural origin, admitted for intracranial hypertension, deterioration of the general status, and weakness on the right side of her body. A cerebral magnetic resonance imaging (MRI) showed the presence of a rounded cystic formation in the third ventricle. The patient was operated through a transfrontal transventricular approach, and the cyst was removed. Postoperative course was uneventful. Hydatid disease should be considered part of the differential diagnosis for cystic lesions of the central nervous system, especially in endemic regions. Total removal of the cysts without rupture is a challenge, but best treatment remains an active nationwide prevention.

Clinical and imaging findings in a rare case of sinus pericranii.

BACKGROUND: Sinus pericranii is a rare, usually asymptomatic condition that is characterized by an abnormal communication between the intra- and extracranial venous drainage pathways. The etiology is unknown but both congenital and post-traumatic etiologies have been proposed. Treatment is primarily surgical but newer minimally invasive endovascular approaches have been reported and is indicated due to cosmesis, hemorrhage, and air embolism. ILLUSTRATIVE CASE: We present a case of an 11-month-old boy having sinus pericranii, who was referred for a slowly growing tumor located frontally in the midline on his scalp since 6 months of age. CT-scan with three-dimensional CT (3D-CT) reconstruction and magnetic resonance imaging along with venography was performed which confirmed the diagnosis. Simple surveillance was decided because of a limited esthetic prejudice and the absence of any functional disorder. CONCLUSION: The prognosis is nearly always good with a low risk of bleeding. A simple follow-up is often proposed because of the usual absence of complications.