Hypertrophic pachymeningitis is a progressive disease resulting in a diffuse thickening of dura mater due to inflammation, tumor or autoimmune diseases, but most cases are idiopathic. It is seldom reported to be related to sensorineural hearing loss, but it can cause sensorineural hearing loss which can be potentially reversed through treatment. Here, we report the case of a 54-year-old woman w...

Recent studies on iatrogenic Creutzfeldt-Jakob disease (CJD) raised concerns that one of the hallmark lesions of Alzheimer disease (AD), amyloid-β (Aβ), may be transmitted from human-to-human. The neuropathology of AD-related lesions is complex. Therefore, many aspects need to be considered in deciding on this issue. Observations of recent studies can be summarized as follows: 1) The frequency ...

OBJECTIVE A modified transsphenoidal technique to remove huge pituitary adenomas with marked suprasellar extension (4.5-8 cm of maximum diameter) is presented. METHODS The technique allowed to avoid the occurrence of a precocious descent of the suprasellar cisternal plane into the sellar plane during tumour removal and its related consequences (incomplete tumour removal, occurrence of cerebro...

research providing evidence that dura mater does not represent a mere covering to the central nervous system. The evidence provided by the authors is that CSD reduces blood flow in the dura mater and the hypothesis is that such reduction reflects metabolic changes in the brain via connections between cortical and dural blood supplies. The relevance of the finding is the possible activation of n...

A 10-year-old male cross-breed dog was brought to Nihon University Animal Hospital with a history of acute onset of paralysis in the pelvic limbs 13 days previously. Magnetic resonance imaging revealed an intramedullary linear tract in the spinal cord at the thoracic vertebrae 12-13 region, which appeared hyperintense on T2-weighted images, but was hypointense and isointense on T1-weighted ...

BACKGROUND In the era of surgical resident work hour restrictions, the traditional apprenticeship model may provide fewer hours for neurosurgical residents to hone technical skills. Spinal dura mater closure or repair is 1 skill that is infrequently encountered, and persistent cerebrospinal fluid leaks are a potential morbidity. OBJECTIVE To establish an educational curriculum to train reside...

spinal dura mater or to enlarge the spinal dural sac is not an infrequent requirement in neurosurgery. Some of the more common spinal conditions include Chiari malformations, tethered cord, syringomyelia, and malignant intradural tumors. A postoperative inflammatory reaction followed by fibrosis involving the arachnoid membrane may lead to various complications. When dense adhesions between the...

Involvement of the brain and meninges is rare in cases of Wegener granulomatosis, occurring in 2% to 8% of cases. Meningeal involvement in association with Wegener granulomatosis has scarcely been reported as being confined to the dura mater of brain on images and is thought to represent granulomatous infiltration. There are a few reported cases of Wegener granulomatosis that document involveme...

Twelve introgressed oil palm (Elaeis guineensis) progenies of Nigerian dura x Deli dura were evaluated for bunch yield, yield attributes, bunch quality components and vegetative characters at the Malaysian Palm Oil Board Research Station, in Keratong, Pahang, Malaysia. Analysis of variance revealed significant to highly significant genotypic differences, indicating sufficient genetic variabilit...

The paper presents anatomical considerations on the abnormal ossification, which occurred around the dorsum of the sella turcica in the human skull of the female individual. Probably the morphological alterations of the sellar region were associated with extensive heterotopic ossification of the dura mater attached to the dorsum of the sella turcica and the posterior clinoid processes. The anal...