keyword
MENU ▼
Read by QxMD icon Read
search

Cranium

keyword
https://www.readbyqxmd.com/read/27917338/six-different-extremely-calcified-lesions-of-the-brain-brain-stones
#1
Yurdal Gezercan, Vedat Acik, Gökhan Çavuş, Ali Ihsan Ökten, Emre Bilgin, Hakan Millet, Burak Olmaz
BACKGROUND: This study aimed to extend clinical documentation of cerebral calculi by reporting six cases of cerebral calculi with distinct etiologies and localizations. METHODS: We evaluated the age, sex distribution, presenting symptoms, neurological examination findings, pathology results, and location of the calcifications of six patients with intracranial calcifications. RESULTS: Three of the six patients with brain stones were female (50%), and three were male (50%)...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27906038/craniopagus-parasiticus-a-parasitic-head-protruding-from-temporal-area-of-cranium-a-case-report
#2
Wassihun Nega, Meku Damte, Yonas Girma, Getachew Desta, Mengistu Hailemariam
BACKGROUND: Craniopagus parasiticus is rare with an incidence of approximately four to six cases in 10,000,000 births. In our case, the head of the parasitic twin protruded from the temporal area of the normal twin's cranium. The parasitic twin had two deformed lower limbs, of which one was rudimentary, and long bones of the bilateral lower limbs and some pelvic bone. Dissection of the mass of the parasitic twin's body revealed the intestine but no chest organs or abdominal organs. There was a rudimentary labium but no vaginal opening...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27893560/cranial-bone-graft-donor-site-reconstruction
#3
Muzaffer Çelik
My most important concern, in my entire experience with cranial bone grafting procedures, is managing the bone graft donor site such as donor site cavity from harvesting and weakness of the cranium. The most common patient complaint, following cranial bone grafting for aesthetic indications, is the presence of a cavity at the donor site. The authors have managed more than 200 patients since 2001, wherein the cranial bone graft-donor sites were reconstructed with tiny bone chip lamellae harvested from the area adjacent to the donor site...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27891026/anaesthesia-management-in-craniovertebral-junctional-anomalies
#4
REVIEW
Oswald Mascarenhas
Craniovertebral Junctional (CVJ) anomalies are developmental disorders that affect the skeleton and enclosed neuraxis at the junction of cranium and cervical spine. The high prevalence of airway obstruction and restrictive pulmonary disease in combination with cardiovascular manifestations poses a high anaesthetic risk to these patients. This article provides a discussion of management of anaesthesia in patients with craniovertebral anomalies, the evaluation of risk factors in these patients and their management, including emergency airway issues...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27890544/persistent-hydrocephalus-due-to-postural-activation-of-a-ventricular-shunt-anti-gravity-device
#5
Claudia L Craven, Ahmed K Toma, Laurence D Watkins
The ever present need to balance over drainage with under drainage in hydrocephalus has required innovations including adjustable valves with antigravity devices. These are activated in the vertical position to prevent siphoning. We describe a group of bedridden patients who presented with unexplained under drainage caused by activation of antigravity shunt components produced by peculiar head/body position. Retrospective single centre case series of hydrocephalus patients, treated with ventriculo-peritoneal (VP) shunt insertion between April 2014 - February 2016...
November 24, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27883982/exocranial-surfaces-for-sex-assessment-of-the-human-cranium
#6
Barbora Musilová, Ján Dupej, Jana Velemínská, Kathia Chaumoitre, Jaroslav Bruzek
Determination of sex is one of the most important and challenging disciplines in biological anthropology. Creating a robust tool for sexing crania is crucial for forensic anthropology, especially in this period of migration, travel, and globalization, when different populations are mixed together in one region. Many different approaches to sex estimation using the skull have been published; however, population specificity and oscillation of variable sexual dimorphism typically reduces their effectiveness. The aim of this study was to create a robust classifier using virtual anthropology without the use of a CT scanner...
December 2016: Forensic Science International
https://www.readbyqxmd.com/read/27872725/a-case-of-monocephalusrachipagus-tribrachius-tetrapus-in-a-puppy
#7
Adonis Pino, Arlenis Pérez, Aine Seavers, Guillermo Hermo
Caudal duplication (dipygus) is an uncommon pathologic of conjoined twinning. The conjoined malformation is classified according to the nature and site of the union. We report the presence of this malformation in a female crossbreed puppy. The puppy was delivered by caesarean section following a prolonged period of dystocia. External findings showed a single head (monocephalus) and a normal cranium with no fissure in the medial line detected. The thorax displayed a caudal duplication arising from the lumbosacral region (rachipagus)...
2016: Veterinary Research Forum
https://www.readbyqxmd.com/read/27870349/ontogeny-of-the-postorbital-region-in-tarsiers-and-other-primates
#8
Valerie B DeLeon, Timothy D Smith, Alfred L Rosenberger
Bony structure of the postorbital region is a key trait distinguishing major clades of primates. Strepsirrhines share a postorbital bar, and anthropoids share a complete postorbital septum. At issue is whether the partial postorbital septum of tarsiers unites living tarsiers more closely with anthropoids than with certain large-eyed Eocene fossils. Previously we reported incomplete postorbital closure in tarsiers at birth. In this article, we document comparative analyses of the postorbital region in a broad range of perinatal primates...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27869316/phylogeny-phylogenetic-inference-and-cranial-evolution-in-pitheciids-and-aotus
#9
Alexander Bjarnason, Christophe Soligo, Sarah Elton
Pitheciids, one of the major radiations of New World monkeys endemic to South and Central America, are distributed in the Amazon and Orinoco basins, and include Callicebus, Cacajao, Chiropotes, and Pithecia. Molecular phylogenetics strongly support pitheciid monophyly, whereas morphological analyses infer a range of phylogenies including a sister relationship between Aotus and Callicebus. We collected geometric morphometric cranial data from pitheciids and Aotus, and used cranial data for distance-based phylogenetic analysis and tests of phylogenetic signal...
November 21, 2016: American Journal of Primatology
https://www.readbyqxmd.com/read/27853575/the-impact-of-gape-on-the-performance-of-the-skull-in-chisel-tooth-digging-and-scratch-digging-mole-rats-rodentia-bathyergidae
#10
Andrew F McIntosh, Philip G Cox
The African mole-rats (Bathyergidae) are a family of rodents highly adapted for life underground. Previous research has shown that chisel-tooth digging mole-rats (which use their incisors to dig burrows) are clearly distinguishable from scratch diggers (which only use the forelimbs to tunnel) on the basis of morphology of the skull, and that the differences are linked to the production of high bite forces and wide gapes. We hypothesized that the skull of a chisel-tooth digging mole-rat would perform better at wider gapes than that of a scratch digging mole-rat during incisor biting...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27845963/internal-distraction-osteogenesis-with-piezosurgery-oblique-osteotomy-of-supraorbital-margin-of-frontal-bone-for-the-treatment-of-unilateral-coronal-synostosis
#11
Weimin Shen, Jie Cui, Jianbing Chen, Yi Ji, Liangliang Kong
PURPOSE: To assess the utility of internal distraction osteogenesis with Piezosurgery oblique osteotomy of supraorbital margin of frontal bone for the treatment of unilateral coronal synostosis and to study the outcome and complications of this procedure. Oblique osteotomy allows for entry into the cranial cavity, and along with parallel cut to the roof of the orbit, avoids the need to cut into the orbit which forms the frontal flap. METHODS: Oblique osteotomy was performed along the supraorbital rim to do a frontal suture of the glabella (ages of patients were less than 1 year) or on the opposite side of the supraorbital rim (ages of patients were older than 1 year) after performing a suturectomy of the effected coronal suture...
November 15, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27836166/skull-diversity-in-the-homo-lineage-and-the-relative-position-of-homo-naledi
#12
Lauren Schroeder, Jill E Scott, Heather M Garvin, Myra F Laird, Mana Dembo, Davorka Radovčić, Lee R Berger, Darryl J de Ruiter, Rebecca R Ackermann
The discovery of Homo naledi has expanded the range of phenotypic variation in Homo, leading to new questions surrounding the mosaic nature of morphological evolution. Though currently undated, its unique morphological pattern and possible phylogenetic relationships to other hominin taxa suggest a complex evolutionary scenario. Here, we perform geometric morphometric analyses on H. naledi cranial and mandibular remains to investigate its morphological relationship with species of Homo and Australopithecus...
November 8, 2016: Journal of Human Evolution
https://www.readbyqxmd.com/read/27833717/two-stage-cranioplasty-tissue-expansion-directly-over-the-craniectomy-defect-prior-to-cranioplasty
#13
Ellianne Jacira Dos Santos Rubio, Eelke M Bos, Ruben Dammers, Maarten J Koudstaal, Anton G Dumans
Performing a skull reconstruction for a long-term existing large cranium defect usually needs either skin enhancement or skin flaps and cranioplasty. This procedure can be accompanied with aesthetic and functional complications. The presented case describes a 27-year-old man in need of a cranial reconstruction following decompressive craniectomy as treatment for severe traumatic brain injury. Autologous cranioplasty after decompressive craniectomy failed due to bone flap infection. Because of cognitive behavioral problems, a protective helmet needed to be worn in awaiting cranioplasty...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27831977/single-stage-combined-craniofacial-repair-for-frontoethmoidal-meningoencephalocele
#14
Ahmed Gaber Hassanein, Khalid Nasser Fadle
INTRODUCTION: Frontoethmoidal meningoencephalocele (FMEC) is a rare congenital anomaly characterized by herniation of brain tissue and meninges through a defect in the cranium and associated with facial dysmorphism. Treatment modalities include extra cranial, transcranial, or combined craniofacial approaches. The combined approach is considered the best treatment choice. METHODS: Twelve patients with FMEC aging from 6 months to 4 years were treated by single-stage combined craniofacial approach between July 2011 and July 2015...
November 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27830878/rostro-dorsal-and-rostro-lateral-skull-morphologic-variability-in-three-age-groups-of-the-egyptian-mongoose-herpestes-ichneumon-linnaeus-1758-implications-of-certain-orbital-parameters-angular-geometric-approach
#15
Michael Oluwale Samuel, Nathaniel Wanmi, Levi Usende
This study evaluated thirty skulls of the grey mongoose divided into three age groups (six pups, ten juveniles and fourteen adults) for skull shape variability determination. Specific geometric shapes were drawn from defined points. Angular geometric measurements of shapes derived from rostro-dorsal and rostro-lateral parts of the skull includes; orbital angles (with and without the mandible), comprising of viscero-cranium, skull and orbital index was calculated to evaluate the correlations if any, with angles measured...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27829009/the-morphogenesis-of-cranial-sutures-in-zebrafish
#16
Jolanta M Topczewska, Ramy A Shoela, Joanna P Tomaszewski, Rupa B Mirmira, Arun K Gosain
Using morphological, histological, and TEM analyses of the cranium, we provide a detailed description of bone and suture growth in zebrafish. Based on expression patterns and localization, we identified osteoblasts at different degrees of maturation. Our data confirm that, unlike in humans, zebrafish cranial sutures maintain lifelong patency to sustain skull growth. The cranial vault develops in a coordinated manner resulting in a structure that protects the brain. The zebrafish cranial roof parallels that of higher vertebrates and contains five major bones: one pair of frontal bones, one pair of parietal bones, and the supraoccipital bone...
2016: PloS One
https://www.readbyqxmd.com/read/27826647/sex-estimation-from-the-long-bones-of-modern-south-africans
#17
Gabriele C Krüger, Ericka N L'Abbé, Kyra E Stull
Best scientific practice for sex estimation incorporates accurate techniques that employ appropriate standards and population- and period-specific data. Single measurements provide accurate sex estimations, but multiple measurements and multivariate techniques offer greater validity to biological profile assessments. Appropriate, modern standards for sex estimation are limited to the cranium in South Africans (SA), which warrants the examination of the potential for sex estimation using the postcrania of socially defined SA blacks, whites and coloureds through multivariate models and advanced statistical techniques...
November 8, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27822200/immediate-and-longitudinal-alterations-of-functional-networks-after-thalamotomy-in-essential-tremor
#18
Changwon Jang, Hae-Jeong Park, Won Seok Chang, Chongwon Pae, Jin Woo Chang
Thalamotomy at the ventralis intermedius nucleus has been an effective treatment method for essential tremor, but how the brain network changes immediately responding to this deliberate lesion and then reorganizes afterwards are not clear. Taking advantage of a non-cranium-opening MRI-guided focused ultrasound ablation technique, we investigated functional network changes due to a focal lesion. To classify the diverse time courses of those network changes with respect to symptom-related long-lasting treatment effects and symptom-unrelated transient effects, we applied graph-theoretic analyses to longitudinal resting-state functional magnetic resonance imaging data before and 1 day, 7 days, and 3 months after thalamotomy with essential tremor...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27819848/morphological-evaluation-of-soft-tissue-augmentation-using-porous-poly-dl-lactic-acid-with-straight-holes
#19
Yukawa Ken, Tachikawa Noriko, Akiko Furuichi, Kasugai Shohei
OBJECTIVES: This study investigated the biological reaction to porous poly-DL-lactic acid (PDLLA) scaffolds with holes for soft tissue augmentation. MATERIALS AND METHODS: The control group was porous PDLLA with a diameter of 5.0 mm and a height of 2.0 mm. For the 2 test groups, 7 holes were drilled from the upper to the lower base of the scaffolds; the holes had diameters of 0.5 and 1.0 mm. A scaffold was placed in the periosteum of the cranium. The height and molecular weight (Mw) of the scaffolds were measured at 4 and 8 weeks...
December 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27815845/the-craniocervical-junction-embryology-anatomy-biomechanics-and-imaging-in-blunt-trauma
#20
REVIEW
Curtis Edward Offiah, Emily Day
: Imaging of the blunt traumatic injuries to the craniocervical junction can be challenging but central to improving morbidity and mortality related to such injury. The radiologist has a significant part to play in the appropriate management of patients who have suffered injury to this vital junction between the cranium and the spine. Knowledge of the embryology and normal anatomy as well as normal variant appearances avoids inappropriate investigations in these trauma patients. Osseous injury can be subtle while representing important radiological red flags for significant underlying ligamentous injury...
November 4, 2016: Insights Into Imaging
keyword
keyword
85133
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"