Results 31 to 40 of about 27,502 (253)

An Unusual Case of Aneurysmal Bone Cyst Involving Both Middle and Posterior Fossa Skull Base

Indian Journal of Neurosurgery, 2016
Aneurysmal bone cyst (ABC) is a benign osteolytic bony lesion that can be locally destructive. The skull base is an uncommon location for this tumor with a reported incidence of 3 to 6%.
Shonali Valsangkar, Hrushikesh Kharosekar, Vernon Velho   +2 more
doaj   +1 more source

THE DIAGNOSIS OF TUMORS IN THE POSTERIOR CRANIAL FOSSA [PDF]

Journal of the American Medical Association, 1915
Our knowledge of cerebellar symptoms and of cerebellar localization has advanced considerably during the last few years, chiefly owing to the work of Babinski and Rothmann, but in comparison withcerebralsymptomatology and localization this progress has not been great.
openaire   +1 more source

The IRE1‐XBP1s Axis Drives Inflammatory Osteolysis by Regulating a 5‐HT Dependent Endogenous Anti‐Autophagy Mechanism

Advanced Science, EarlyView.
A previously unrecognized IRE1‐XBP1s‐Slc6a4 signaling axis links endoplasmic reticulum stress to serotonin metabolism, autophagy, and inflammatory osteoclastogenesis. By promoting intracellular serotonin uptake and reducing endogenous 3‐methyladenine accumulation, this pathway accelerates inflammatory bone destruction and provides a promising ...
Pengchao Yang, Binxiang Zhu, Yuzhi He, Yang Tian, Honglei Kang, Shian Hu, Pengju Wang, Yong Xu, Zhuowei Lei, Peijun Qi, Hao Yang, Yang Lin, Yimin Dong, Feng Li, Hanfeng Guan   +14 more
wiley   +1 more source

Cystic lesion of posterior cranial fossa: is it Dandy-Walker?

Journal of Pediatric and Neonatal Individualized Medicine, 2017
Accidental discovery of a fluid collection within the posterior cranial fossa in a fetus or a newborn can be a tricky incidental finding during a routine scan, alarming for a Dandy-Walker Malformation (DWM).
Stella De Nardi, Carmela Porcu, Pier Luigi di Paolo, Daniela Longo, Melania Puddu, Francesca Santoro, Luca Saba   +6 more
doaj   +1 more source

Prenatal Evaluation of RNU4‐2 Variants in Fetuses With Central Nervous System Anomalies

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Fetal central nervous system (CNS) anomalies are among the most common congenital malformations, yet the overall prenatal diagnostic yield of current genetic testing remains below 40%. Variants in RNU4‐2, a non‐coding gene encoding the U4 small nuclear RNA (snRNA), have recently been linked to a novel highly recurrent dominant ...
Yiyao Chen, Li Gao, Xu Han, Yunyun Cao, Lanlan Zhang, Yi Wu, Xinrong Zhao, Wenjing Hu, Ruiyu Ma, Renyi Hua, Niu Li, Yanlin Wang, Jian Wang, Shuyuan Li   +13 more
wiley   +1 more source

CT and MR Studies of Giant Dermoid Cyst Associated to Fat Dissemination at the Cortical and Cisternal Cerebral Spaces

Case Reports in Radiology, 2013
This study focuses on CT and MR studies of adult patient with giant lesion of the posterior cranial fossa associated with micro- and macroaccumulations with density and signal like “fat” at the level of the cortical and cisternal cerebral spaces.
Alessandro D'Amore, Alessandro Borderi, Rita Chiaramonte, Giorgio Conte, Ignazio Chiaramonte, Vincenzo Albanese   +5 more
doaj   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Pathogenic connection of Chiari anomaly and syringomyelia

Ukrainian Neurosurgical Journal, 2010
The aim of this research — studying of correlation between posterior cranial fossa size and degree of cerebellar tonsils displacement, size of cyrix cysts, and speed of disease progression.The research is based on diagnostic data analysis ...
E. I. Slynko, Mohamed Kamel M.M. Ragabi
doaj   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Disproportionately large communicating fourth ventricle: two case reports

Journal of Medical Case Reports, 2019
Background Management of the disproportionately large communicating fourth ventricle is still problematic. Case presentation Two cases of disproportionately large communicating fourth ventricle were treated successfully.
Jian Lyu, Ju-bo Wang, Yu Quan, Shouping Gong   +3 more
doaj   +1 more source