OBJECTIVE To describe a modification of the pterional approach (PT), minipterional craniotomy (MPT), and compare anatomic exposure provided by these two approaches. METHODS The offered MPT PT were compared in eight sides cadaver heads using computerized tracking system, robotic microscope, an image-guidance system. area surgical exposure, angular limits each evaluated. Three recently operated clinical cases (EGF) are also reported. RESULTS There no statistical differences total between...

Abstract OBJECTIVE: To compare anatomically the surgical exposure provided by pterional (PT), orbitozygomatic (OZ), and minisupraorbital (SO) craniotomies. @@METHODS:@@ Seven sides of six fixed cadaver heads injected with silicone were used. The mini-SO craniotomy followed PT OZ approaches performed sequentially. bony flaps attached miniplates screws, allowing easy conversion between approaches. A frameless stereotactic device was used to calculate an area angles approach for different...

The superficial venous system of the posterior neck (suboccipital plexus) is a potential source complications from bleeding and air embolism. Because there little information available about this in literature, an anatomic study morphometric analysis mastoid emissary vein (MEV) complex were undertaken. Both surgical endovascular implications considered.The craniocervical regions 15 silicon-injected human cadaveric specimens dissected. patterns variances anatomy observed. Distances between...

Introduction: The venous tributaries at and around the craniocervical region are a potential source of complications from bleeding air embolism. However, anatomic information on connections is lacking in literature. This combined morphometric study was undertaken to analyze mastoid emissary vein (MEV) complex which routinely encountered neurovascular surgery or craniovertebral junction.

In Brief OBJECTIVE We introduce a technique for performing selective amygdalohippocampectomy (AH) through minisupraorbital approach. METHODS A craniotomy and an anterior AH were performed in 8 cadaver heads (16 sides). The anatomic specimens analyzed, the extent of resection hippocampus amygdala was evaluated. Surgically relevant measurements using specimens. An image-guided system used to document AH. Laboratory data support clinical application technique. RESULTS route allowed removal...

OBJECTIVE In many locations, neurosurgeons still use stereotactic- or anatomic-based craniocerebral topography systems to identify cortical landmarks. However, their predictive value for identifying two key landmarks—the central sulcus (CS) and lateral (LS)—has never been evaluated. We quantitatively compare leading topographic methods review historical significance neurosurgery. METHODS On 12 cadaveric head sides, the of Broca, Reid, Poirier, Taylor-Haughton, Rhoton were used predict...

Down syndrome is the most frequent genetic cause of mental retardation. Although usually presenting dysmorphic features and organ malformations, it rarely associated with congenital hydrocephalus. The case male neonate whose hydrocephalus was detected since pregnancy discovered to have at birth reported. Chromosomal analysis confirmed disorder, treated ventriculoperitoneal shunt because abnormal increase head circumference. patient has been accompanied his development considered normal when...

The cerebral proliferative angiopathy (CPA) is an uncommon vascular malformation of the brain, representing approximately 3.4% arteriovenous (AVM) cases, with complex morphology and poorly understood origin. Thus, we present case a woman patient aged 27 years, who performed magnetic resonance imaging (MRI) brain because headache. Extensive was identified right frontoparietal, presence tissue mixed vessel. CPA multiple feeder arteries, absence nidus slowing flow into venous system, confirming...

Abstract The occurrence of herniated disc simulating diseases in neuroimaging it's an uncommon situation. However, due to changes that occur sequestered fragment, some cases can mimic spinal neoplasms. Thus, we present the case a female patient, 60 year-old, with left back pain and leg weakness. Left lower limb presented strength grade IV, positive 45 degress Lasègue's signal patellar areflexia. Lumbar spine magnetic resonance imaging (MRI) showed expansive centro-lateral lesion at L4-L5...

Fasciculations are symptoms present in a broad spectrum of conditions, ranging from normal manifestations to motor neuron diseases. They also represent the main picture benign fasciculation syndrome. We report case such syndrome: 48-years-old woman complaining about fasciculations for three decades who remained with even after compensation disclosed hyperthyroidism. The introduction gabapentin rendered control her fasciculations. available data literature therapeutic approaches revised, as...

Paracoccidioidomycosis is the most prevalent endemic mycosis in Latin America, with a great incidence Brazil. Although common disease, its medullary form rare. We present case report of paracoccidioidomycosis presenting subacute, progressive, spinal cord symptoms, and multiple expansive lesions into cervical thoracic cord. The patient was treated itraconazole showed good clinical radiologic recovery upon six months follow-up.

Pituitary carcinomas are rare neoplasms characterized by craniospinal and/or systemic metastases originated from the pituitary. Their histopathology is frequently indistinguishable that of benign adenomas. The development markers better reflect their behavior desirable. We present case a 47 year-old man with prolactin-secreting macroadenoma who was submitted to surgeries, cranial radiation therapy, and bromocriptine treatment, but evolved fatal outcome after disclosure intracranial...

Fasciculations are symptoms present in a broad spectrum of conditions, ranging from normal manifestations to motor neuron diseases. They also represent the main picture benign fasciculation syndrome. We report case such syndrome: 48-years-old woman complaining about fasciculations for three decades who remained with even after compensation disclosed hyperthyroidism. The introduction gabapentin rendered control her fasciculations. available data literature therapeutic approaches revised, as...

The association between Lückenschädel and craniosynostosis is unusual unknown. Genetic origin a possibility, representing one of many possible phenotypes for mutation. To the best our knowledge, such anomalies in type IV Chiari malformation has never been reported before. authors present case patient with obstructive hydrocephalus, diagnosed associated sagittal craniosynostosis. bone abnormality least commonly malformation. It consists defect bones membranous that form cranial vault. This...

Tuberculosis is a chronic bacterial infection caused by <i>Mycobacterium tuberculosis</i>. Despite advances in treatment, resistant strains and unusual sites of involvement have been diagnosed. We present case 13-year-old patient treatment for tuberculous meningitis who presented with progressive paraparesis. The MRI showed two intramedullary nodular lesions at T4–T6 levels, isointense annular hyperintensity on T1W, hypointense T2W, becoming ring enhancement after contrast. These...

There is some evidence indicating that inflammation of the aneurysmal wall related to growth and rupture. The presence CD68 may indicate greater inflammatory activity. objective this study evaluate immunoexpression in surgically resected brain aneurysms its association with smoking. walls after microsurgical clipping were envoyed immunohistochemistry investigation. was expression CD34 antibodies. associations between markers, smoking, rupture tested using Fischer's exact test. tunica media...

Abstract Atypical teratoid/rhabdoid (AT/RT) of the brain is a rare malignant pediatric neoplasm that usually affects children around age two. This report about male patient, six months age, who presented with seizures and decreased level consciousness, progressing to numbness, oculomotor nerve palsy tetra-spasticity. CT scan showed left cerebellopontine angle tumor. Magnetic resonance imaging (MRI) solid lesion, hypointense on T1W heterogeneous hyperintense T2W, enhanced after contrast...

Introduction: The superior sagittal sinus (SSS) anterior third ligation can cause severe mental disorders, personality changes, recent memory loss, akinetic mutism, cerebral edema, and frontal venous infarction leading to death. Starting with Cushing's Meningiomas text (1938), many reports of the this SSS portion have been described as well tolerated by patient. objective study is quantitatively determine its anatomical pattern.

Introduction: In 1861 Paul Broca described a method to identify the central sulcus (CS). Poirier (1891), Taylor-Haughton (1900), and Rhoton (2002) had also procedures CS lateral (LS). The precision of these measurements hasn't been compared in literature. We quantitatively methods for determination LS.

Introduction: The occurrence of remote cerebellar hemorrhage (RCH) during spinal surgery is a rare event and can go undetected in the majority cases. A mortality rate almost 15% has been reported. Case report: We present two cases patients presenting with after lumbar spine complicated dural rupture. review its physiopathological mechanisms made. In both diagnosis was made investigation neurological deficits early postoperative period. first case, there rupture due to disruption pre-existing...