Results 41 to 50 of about 31,814 (197)

MRI Vessel Wall Imaging and Treatment of an Aneurysm at the Atlanto-Axial Segment of an Aberrant Vertebral Artery [PDF]

Neurointervention, 2018
We report a case of unique location of an aneurysm at the atlanto-axial extradural segment of a unilateral aberrant vertebral artery. The MRI vessel wall imaging findings and possible mechanism of aneurysm formation were discussed.
Tsang Chun On Anderson, Yeung Wan Lung Ryo, Mak Ka Fung, Lui Wai Man   +3 more
doaj   +1 more source

Occipital-posterior cerebral artery bypass via the occipital interhemispheric approach

Surgical Neurology International, 2013
The unavailability of the superficial temporal artery (STA) and the location of lesions pose a more technically demanding challenge when compared with conventional STA-superior cerebellar or posterior cerebral artery (PCA) bypass in vascular reconstruction procedures.
Kazumata, Ken, Yokoyama, Yuka, Sugiyama, Taku, Asaoka, Katsuyuki   +3 more
openaire   +2 more sources

Occipital artery anastomosis to vertebral artery causing pulsatile tinnitus [PDF]

BMJ Case Reports, 2013
Pulsatile tinnitus can result from various vascular etiologies that cause transmission of pulsatile turbulent flow into the inner ear. Less commonly, non-vascular sources cause increased blood flow and transmission of sound perceived as tinnitus. Thorough clinical examination leads to appropriate imaging evaluation and therapeutic planning.
Alexander, Matthew David, English, Joey, Hetts, Steven W   +2 more
openaire   +5 more sources

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Four collateral circulation pathways were observed after common carotid artery occlusion

BMC Neurology, 2019
Background Common carotid artery (CCA) occlusion (CCAO) is a rare condition. Owing to collateral circulation, ipsilateral internal carotid artery (ICA) and external carotid artery (ECA) are often patent.
Jianan Wang, Chengrong Zheng, Bei Hou, Aihua Huang, Xiongwei Zhang, Bin Du   +5 more
doaj   +1 more source

Improved clinical symptoms in three patients with spinocerebellar ataxia through a surgical decompression procedure of the posterior cranial fossa with subsequent flap transplantation of the cerebellum

Journal of Neurorestoratology, 2022
Objective:This study aimed to explore the possibility and outcomes of surgical treatments for managing hereditary spinocerebellar ataxia (SCA).Methods:Three patients diagnosed with SCA and strongly willing to get surgical treatments were selected for ...
Guiwen Chen, Zhitao Peng, Yuanqiang Zhong, Xiaowen Lian, Li Yuan, Zhihao Zhai, Jiasheng Ju, Jianliang Chen   +7 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Identity of growing pulsatile mass lesion of the scalp after blunt head injury: Case reports and literature review

Trauma Case Reports, 2018
A growing pulsatile lump of the scalp rarely occurs after blunt head injury. In this condition, the lump may be a delayed-onset traumatic vascular scalp injury such as a pseudoaneurysm or an arteriovenous fistula (AVF).
Hiroaki Matsumoto, Ikuya Yamaura, Yasuhisa Yoshida   +2 more
doaj   +1 more source

Assessment of intraspecific skull variation in the Campanian baenid turtle Plesiobaena antiqua

The Anatomical Record, EarlyView.
Abstract Baenids are freshwater paracryptodiran turtles with a fossil record ranging from the Early Cretaceous to the Eocene. The baenid Plesiobaena antiqua is the most common turtle in the Campanian (Late Cretaceous) Dinosaur Park Formation in Canada, but the apparent intraspecific variation remains poorly understood.
Scott Bellotti, Donald D. Brinkman, Serjoscha W. Evers, Walter G. Joyce, Yann Rollot   +4 more
wiley   +1 more source

Early-Onset Traumatic Occipital Artery Pseudoaneurysm: A Short Report

Indian Journal of Neurosurgery
Here we present a rare case of a 63-year-old male patient who presented to the emergency department 3 days after a fall from standing height, with a painful nonpulsatile mass in the right occipital region.
Daniel Andrade Gripp, Cleiton Formentin, Joab Alves Nicácio, Renato Carvalho Santos, Ana Carolina Pinheiro Campos, Pedro Zambelli Mesquita de Oliveira, Jorge Tomio Takahashi, Marcos Vinícius Calfat Maldaun   +7 more
doaj   +1 more source