Pediatric metameric cervical spinal cord arteriovenous malformation managed with staged endovascular and spinal stabilization approach: a case report.

Introduction: Spinal cord arteriovenous malformations (SCAVM) are rare congenital vascular malformations, characterized by two or more AVMs affecting any of the spinal segments. SCAVM has complex pathophysiology and may be associated with acute, or progressively neurological deficits.

Case Presentation: A 12-year old girl, presented with progressive neurologic deficits secondary to compressive cervical myelopathy due to a cervical metameric SCAVM.

Crossed Brainstem Syndrome of the Tectal Plate's Inferior Colliculus Revealing Quadrigeminal Midbrain Cavernous Malformation.

Cavernous malformations are low-flow fragile vascular lesions prone to extralesional bleeding that can occur in the cerebral hemispheres, the brainstem, or the spinal cord. This paper reports the case of a 32-year-old right-handed man with acute-onset headaches associated with right-sided tinnitus, right-sided hemianesthesia, and binocular diplopia related to cranial nerve IV palsy. Neuroimaging displayed left-sided isolated cavernous malformation of the inferior tectal plate, with evidence of extralesional bleeding.

[Cavernous hemangioma of the cauda equina: A case report].

Background: Cavernous hemangiomas are vascular malformations formed by groups of dilated sinusoids, organized in channels with a single layer of endothelium. Cavernous hemangiomas represent only 3% of all intradural lesions, and of these 5-12 % correspond to spinal cord lesions and those of the cauda equina are rare.

Clinic Case: A 57 years-old male patient is presented , without history of radiotherapy, who showed low back pain and contracture of the dorsal and paraspinal muscle during 6 months, evaluated in another hospital and diagnosed with a lumbar disc herniation, he was managed with analgesics and physiotherapy for two months, however the theraphy failed, the symptoms worsened and dysesthesias appeared in the gluteal and perianal region, with reduction of strength in both legs with predominance in the left leg, as well bladder sphincter dysfunction .

Surgical treatment and outcome of spinal arteriovenous malformations.

Aim: A rare and diverse set of abnormalities formed by spinal blood arteries known as spinal arteriovenous malformations (AVMs) has a higher risk of hemorrhage and morbidity, causing the shunting of blood from veins with an aberrant capillary bed to arteries. Knowledge of the vascular anatomy of spinal AVMs and the spinal cord's vascular supply is crucial to its therapy. The aim of this study was to report a case of SAVM healing after surgical excision, highlighting the importance of surgical excision in treating these rare lesions.

Comparative microanatomy and histology of spinal and cerebral veins: Implications for dural arteriovenous fistula clinical presentations.

Cranial dural arteriovenous fistulas (DAVFs) that display cortical venous drainage are at risk of hemorrhage, unlike spinal DAVFs, which seldom bleed. The underlying mechanism for this difference is poorly understood. We hypothesized that cerebral veins are more fragile than spinal veins due to differences in histologic compositions.

Cavernous Malformations of the Central Nervous System: A Comprehensive Review of Pathophysiology, Diagnosis, and Management.

Cavernous malformations (CMs) of the central nervous system (CNS) are vascular anomalies characterized by clusters of dilated, thin-walled blood vessels prone to leakage and hemorrhage. These malformations can occur throughout the CNS, including the brain and spinal cord, and present with a wide range of clinical manifestations, from asymptomatic cases to severe neurological deficits. Advances in neuroimaging, particularly magnetic resonance imaging (MRI), have greatly improved the diagnosis and understanding of CMs, enabling more precise differentiation from other vascular lesions.

Intramedullary cavernous malformation: A case report.

Cavernous malformations are rare vascular anomalies of the central nervous system, occurring in the spinal cord in just 5% of cases. Despite being documented in the literature, intramedullary cavernous malformations are exceedingly rare and often challenging to distinguish from other intramedullary lesions. We report a case of a 42-year-old patient with back pain, right-sided dysesthesias, and impaired proprioception in the distal limbs for approximately 3 months.

Efficacy of Transarterial Embolization Using Intermittent Flow Control for Tentorial Dural Arteriovenous Fistula Presenting as Myelopathy: A Technical Report.

Background: Transarterial embolization (TAE) is generally the endovascular treatment of choice for tentorial dural arteriovenous fistula (dAVF). Although flow control of the feeder vessel has been reported to achieve complete shunt blockade, flow control in the absence of ischemia tolerance of internal carotid artery as a feeder has not been reported. We present a case in which treatment by Onyx TAE with intermittent flow control of the meningohypophyseal trunk as the feeder was successful for a tentorial dAVF presenting with myelopathy without tolerance of ischemia.

Intradural extramedullary cervical cavernoma.

Background: Spinal cavernomas (SCs) account for about 5% of all spinal vascular malformations. Intradural SCs occur in just 3% of cases and are typically intramedullary.

Case Description: A 58-year-old female presented with progressive left occipital neuralgia, left cervicobrachial neuralgia, and paresthesia of all four extremities.

Prognostic Factors and Treatment Efficacy in Spontaneous Spinal Epidural Hematoma: A Single Center Experience and Literature Review.

Background/aim: Spontaneous spinal epidural hematoma (SSEH) is a rare but serious condition, accounting for less than 1% of spinal lesions, with an incidence of 0.1 per 100,000 annually. Discovered by Jackson in 1869, around 40-50% of SSEH cases often lack a definitive cause, though risk factors, such as anticoagulant usage, vascular malformations, and hypertension are recognized.

[Diagnostic capabilities of spinal MR-angiography and spinal MR-tractography in Foix-Alajouanine syndrome].

The Foix-Alajouanine syndrome was originally reported by these authors in 1926, as rapidly progressive vasculitis on the background of a viral infection. The pathology was represented by the huge, more than 10 times, dilation either of the lumen, or the walls of the spinal vessels, either of the arteries, or the veins. There were no signs of thrombosis, no malformations.

Coexistence of neural tube defects and spinal arteriovenous shunts: a case series and review of literature.

Background: Spinal arteriovenous shunts and spinal dysraphism both have a different underlying cause, disease spectrum and developmental process; hence, these entities rarely coexist in a patient. Here, we reported four cases of coexistence of adult-onset spinal arteriovenous shunt and spinal dysraphism in the same patient along with their therapeutic embolisation. Additionally, we conducted an extensive literature review to explore the potential theories and explanations for this coexistence.

Spinal Dural Arteriovenous Fistulas in a Patient with Cowden Syndrome and a Phosphatase and Tensin Homolog Mutation.

Cowden syndrome (CS) is an autosomal dominant syndrome characterized by the development of hamartomas and an increased cancer risk. Most CS patients harbor mutations in the phosphatase and tensin homolog (PTEN) gene. We herein report a 70-year-old patient with CS who presented with lower extremity weakness caused by multiple thoracic dural arteriovenous fistulas.

A rare case of spinal involvement in hereditary hemorrhagic telangiectasia.

Introduction: Here, we describe a rare case of a spinal arteriovenous fistula in a patient with known hereditary hemorrhagic telangiectasia (HHT) and spontaneous intraspinal hemorrhage. Furthermore, we provide a brief review of the literature on the formation of spinal arteriovenous malformations (AVM) in relation to this disease.

Case Presentation: The case involves a 54-year-old male with known HHT.

Lower Cervical Dural Arteriovenous Fistula with a "Skip Lesion" in the Brainstem: A Case Report.

Spinal dural arteriovenous fistulas (SDAVFs) are rare vascular malformations that can occur anywhere in the spine. Most SDAVFs lead to slow aggressive myelopathy due to venous congestion at a level adjacent to the shunt point. However, rare cases of localized brainstem edema without spinal cord lesions have been reported.