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Cranial vault

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https://www.readbyqxmd.com/read/29139535/contribution-of-cranial-neural-crest-cells-to-mouse-skull-development
#1
Taofen Wu, Guiqian Chen, Fei Tian, Hong-Xiang Liu
The mammalian skull vault is a highly regulated structure that evolutionally protects brain growth during vertebrate development. It consists of several membrane bones with different tissue origins (e.g. neural crest-derived frontal bone and mesoderm-derived parietal bone). Although membrane bones are formed through intramembranous ossification, the neural crest-derived frontal bone has superior capabilities for osteoblast activities and bone regeneration via TGF, BMP, Wnt, and FGF signaling pathways. Neural crest (NC) cells are multipotent, and once induced, will follow specific paths to migrate to different locations of the body where they give rise to a diverse array of cell types and tissues...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/29125038/melanotic-neuroectodermal-tumour-of-infancy-a-case-report-and-differential-diagnosis
#2
A P Tan, Thomas S Jacques, Kshitij Mankad, Gregory James, Owase Jeelani, Olga Slater, Felice D'Arco
Melanotic neuroectodermal tumour of infancy is an uncommon pigmented neoplasm of neural crest origin. It was first described in 1918 by Krompecher, known as congenital melanocarcinoma at that time. Although it is generally agreed upon that it is a benign entity, it is locally aggressive and has a significant recurrent risk, reported to be between 10-15%. There have also been prior reports of malignant behaviour in these tumours, although extremely rare. The majority of cases of this tumour (about 70%) arise from the maxilla and its occurrence in the cranial vault represents approximately 15...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/29115678/moderate-climate-signature-in-cranial-anatomy-of-late-holocene-human-populations-from-southern-south-america
#3
Lumila Paula Menéndez
OBJECTIVE: The aim of this study is to analyze the association between cranial variation and climate in order to discuss their role during the diversification of southern South American populations. Therefore, the specific objectives are: (1) to explore the spatial pattern of cranial variation with regard to the climatic diversity of the region, and (2) to evaluate the differential impact that the climatic factors may have had on the shape and size of the diverse cranial structures studied...
November 8, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29110198/surgical-management-of-craniosynostosis-in-the-setting-of-a%C3%A2-ventricular-shunt-a-case-series-and-treatment-algorithm
#4
Michael S Golinko, Danielle N Atwood, Eylem Ocal
PURPOSE: Cerebrospinal fluid diversion via ventricular shunt is a common treatment for hydrocephalus. Change in cranial morphology associated with a sutural fusion has been termed shunt-related or induced craniosynostosis (SRC) or craniocerebral disproportion (CCD). We present a series of patients with SRC who underwent cranial vault remodeling (CVR) and our treatment algorithm. METHODS: Thirteen patients were retrospectively reviewed who had SRC and CVR; 92% of patients had a ventriculoperitoneal (VP) shunt placed for largely intraventricular hemorrhage of prematurity (69% of patients) at a mean age of 2...
November 6, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29084117/a-review-of-randomized-controlled-trials-in-cleft-and-craniofacial-surgery
#5
Jonathan M Bekisz, Elise Fryml, Roberto L Flores
This study presents a systematic review of randomized controlled trials (RCTs) in cleft and craniofacial surgery. All studies reporting on RCTs in cleft and craniofacial surgery were identified on PubMed using the search terms "cleft," "velopharyngeal insufficiency," "velopharyngeal dysfunction," "nasoalveolar molding," "gingivoperiosteoplasty," "Pierre Robin sequence," "craniofacial," "craniosynostosis," "craniofacial microsomia," "hemifacial microsomia," "hypertelorism," "Le Fort," "monobloc," "distraction osteogenesis," "Treacher Collins," and "Goldenhar...
October 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29080945/planning-of-skull-reconstruction-based-on-a-statistical-shape-model-combined-with-geometric-morphometrics
#6
Marc Anton Fuessinger, Steffen Schwarz, Carl-Peter Cornelius, Marc Christian Metzger, Edward Ellis, Florian Probst, Wiebke Semper-Hogg, Mathieu Gass, Stefan Schlager
PURPOSE: Virtual reconstruction of large cranial defects is still a challenging task. The current reconstruction procedures depend on the surgeon's experience and skills in planning the reconstruction based on mirroring and manual adaptation. The aim of this study is to propose and evaluate a computer-based approach employing a statistical shape model (SSM) of the cranial vault. METHODS: An SSM was created based on 131 CT scans of pathologically unaffected adult crania...
October 28, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29070804/digital-reconstruction-of-the-ceprano-calvarium-italy-and-implications-for-its-interpretation
#7
Fabio Di Vincenzo, Antonio Profico, Federico Bernardini, Vittorio Cerroni, Diego Dreossi, Stefan Schlager, Paola Zaio, Stefano Benazzi, Italo Biddittu, Mauro Rubini, Claudio Tuniz, Giorgio Manzi
The Ceprano calvarium was discovered in fragments on March 1994 near the town of Ceprano in southern Latium (Italy), embedded in Middle Pleistocene layers. After reconstruction, its morphological features suggests that the specimen belongs to an archaic variant of H. heidelbergensis, representing a proxy for the last common ancestor of the diverging clades that respectively led to H. neanderthalensis and H. sapiens. Unfortunately, the calvarium was taphonomically damaged. The postero-lateral vault, in particular, appears deformed and this postmortem damage may have influenced previous interpretations...
October 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29068968/isolated-intraorbital-frontosphenoidal-synostosis
#8
Paul A Mittermiller, Kristen W Yeom, Robert M Menard
Unilateral anterior plagiocephaly is most commonly the result of deformational plagiocephaly or unilateral coronal synostosis, a premature fusion of the frontoparietal suture. However, other sutures within the coronal ring have been implicated in producing anterior cranial asymmetries. These fusions can occur in isolation or in concert with adjacent sutures. The frontosphenoidal suture is one such suture within the coronal ring that has been involved both concomitantly with and independently of frontoparietal suture fusion...
October 24, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29068967/surgical-hypercorrection-of-trigonocephaly-evaluation-of-surgical-outcomes
#9
Katelyn G Bennett, Fan Liang, Kavitha Ranganathan, Karin M Muraszko, Christian J Vercler, Steven R Buchman
BACKGROUND: A lasting correction of trigonocephaly is difficult to achieve, as a durable correction requires significant expansion to overcome galeal restriction and soft tissue recoil of the scalp. High rates of relapse have been reported throughout the literature. The specific aim of this study was to determine if the senior author's method of "hypercorrection" decreases relapse and the need for subsequent revisional surgery. METHODS: Patients who underwent operative correction of metopic craniosynostosis between 1988 and 2011 were reviewed...
October 24, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29067505/length-of-synostosis-and-segmented-intracranial-volume-correlate-with-age-in-patients-with-non-syndromic-sagittal-synostosis
#10
Arja Heliövaara, Junnu Leikola, Virve Koljonen, Pia Vuola, Mika Koivikko
PURPOSE: The aim of this study is to compare the length of synostosis and segmented intracranial volume (SIV) with age in children with non-syndromic sagittal synostosis. METHODS: Thirty-three consecutive patients (22 boys) who had been operated by cranial vault remodeling because of sagittal synostosis were compared retrospectively from 3D-CT imaging data sets obtained from volumetric CT. The mean age of the patients at preoperative CT imaging was 0.49 (range 0...
October 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29054029/endocranial-illuminator-a-technique-for-transilluminating-the-skull
#11
Nuttapon Surachotmongkhon, Nawaporn Techataweewan, Robert W Mann
A novel tool, the endocranial illuminator (EI), has been devised to facilitate examination of the interior of the intact human cranium. A number of the endocranial characteristics including cranial thickness, sutural complexities, and foramina are easy visible with this device. The EI enhances the accuracy of anatomical examination of the cranial vault in forensic, archaeological, and historical crania in those cases where they must remain intact. The EI is simple and inexpensive to construct and lightweight so it can be used in the laboratory or easily transported in the field...
October 10, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29046201/-a-clinical-analysis-of-101-infants-with-plagiocephaly
#12
Wei-Wei Pan, Xiao-Mei Tong
OBJECTIVE: To investigate the possible causes of plagiocephaly in infants and the therapeutic effect of postural correction training on plagiocephaly. METHODS: A total of 101 infants who were diagnosed with plagiocephaly were enrolled. According to the age at diagnosis, these infants were divided into 1-4 month group (31 infants), 5-8 month group (40 infants), and 9-12 month group (30 infants). The possible causes of plagiocephaly were analyzed in three groups. The cranial vault asymmetry index (CVAI) before and after postural correction training was compared in three groups...
October 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29040147/longitudinal-assessment-of-developmental-outcomes-in-infants-undergoing-late-craniosynostosis-repair
#13
Stefani C Fontana, Skylar Belinger, Debby Daniels, Margaret Tuttle, Paul J Camarata, Brian T Andrews
Evaluation of infants with craniosynostosis for surgical intervention, as opposed to conservative management, remains a challenge within the field of craniofacial surgery. Studies have consistently demonstrated that surgical repair of craniosynostosis is ideally performed between 3 and 12 months of age. As such, there is limited data regarding neurocognitive development in infants who initially present with uncorrected craniosynostosis after 12 months of age. Moreover, the impact of cranial vault surgery on neurocognitive development at all ages remains under investigation...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29040146/the-role-of-preoperative-imaging-in-the-management-of-nonsyndromic-lambdoid-craniosynostosis
#14
Kavitha Ranganathan, Antonio Rampazzo, Asra Hashmi, Karin Muraszko, Jennifer Strahle, Christian J Vercler, Steven R Buchman
BACKGROUND: The necessity of imaging for patients with craniosynostosis is controversial. Lambdoid synostosis is known to be associated with additional anomalies, but the role of imaging in this setting has not been established. The purpose of this study was to evaluate the impact of preoperative imaging on intraoperative and postoperative management among patients undergoing operative intervention for lambdoid craniosynostosis. METHODS: A retrospective review of patients undergoing cranial vault remodeling for lambdoid craniosynostosis between January 2006 and 2014 was conducted...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29037869/uremic-leontiasis-ossea-a-rare-presentation-of-severe-renal-osteodystrophy-secondary-to-hyperparathyroidism
#15
F Donoso-Hofer, M Gunther-Wood, P Romero-Romano, N Pezoa-Opazo, M A Fernández-Toro, A V Ortega-Pinto
Renal osteodystrophy is a common complication of end-stage renal failure patients. It's most severe osseous complication is characterized by massive thickening of the cranial vault and facial bones, called uremic leontiasis ossea (ULO), with only few cases reported in the literature. A case of a 47-year-old female patient with ULO is presented. Physical examination showed enlargement of the jaws, which hinders proper ventilation and feeding. The computed tomography examination showed marked osseous proliferation in the jaws causing severe bony expansion and loss of normal bony architecture in the skull and the skull base...
October 14, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29036029/-anterior-skull-base-and-pericranial-flap-ossification-after-frontofacial-monobloc-advancement
#16
Anne Morice, Giovanna Paternoster, Agnès Ostertag, Syril James, Martine Cohen-Solal, Roman H Khonsari, Eric Arnaud
BACKGROUND: Frontofacial monobloc advancement (FFMBA) creates a communication between the anterior cranial fossa and nasal cavities. To tackle this issue, trans-orbital pericranial pedicled flaps (PF) are routinely performed in our center. This study aimed to assess the post-operative ossification of the anterior skull base and PF following FFMBA, and to identify factors influencing this ossification. METHODS: Measurements of the skull base only (SB) and of the ossified PF together with the SB (SB-OPF) were performed on CT scans at the naso-frontal (NF) and the naso-ethmoïdo-frontal (NEF) junctions...
October 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29030279/posterior-cranial-vault-distraction-osteogenesis-in-craniofacial-surgery-technical-note
#17
Q de Kerangal, A Paré, A Joly, N Travers, D Goga, B Laure
INTRODUCTION: Posterior cranial vault distraction is a treatment for intracranial hypertension in certain cases of craniosynostosis and faciocraniosynostosis. It allows the harmonization of the skull back and prevents turricephaly. This study presents the surgical technique. TECHNICAL NOTE: Posterior cranial vault distraction osteogenesis consists of a circular osteotomy of the skull back. Four distractors are placed on the cranial flap without detachment of the dura mater...
October 10, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29023296/variability-in-minimally-invasive-surgery-for-sagittal-craniosynostosis
#18
Catharine B Garland, Liliana Camison, Shirley M Dong, Rick S Mai, Joseph E Losee, Jesse A Goldstein
Minimally invasive approaches to the surgical correction of sagittal craniosynostosis are gaining favor as an alternative to open cranial vault remodeling. In this systematic review, the reviewers evaluate the variability in described surgical techniques for minimally invasive correction of sagittal craniosynostosis. Articles were selected based on predetermined inclusion and exclusion criteria from an online literature search through PubMed, EMBASE, and the Cochrane library. Extracted data included the incisions, method of dissection, osteotomies performed, and type of force therapy utilized...
October 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28973550/case-report-free-latissimus-dorsi-flap-in-combination-with-subdural-space-reduction-for-the-prevention-of-recurrent-hemorrhage-following-hemispherectomy
#19
Carolyn M Benson, Holger Joswig, H Brian Evans, David A Steven
BACKGROUND AND IMPORTANCE: Extensive cerebral resections for the treatment of epilepsy may result in a large intracranial dead space that is prone to recurrent hemorrhage, either due to mechanical dislodgement or the development of extensive subdural membranes. Several techniques have been proposed to decrease the risk of hemorrhage by either reducing or filling the remaining intracranial dead space. CLINICAL PRESENTATION: We present a case of persistent hemorrhage following functional hemispherectomy in a patient with a large porencephalic cyst...
July 20, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28963643/is-bone-analysis-with-%C3%AE-ct-useful-for-short-postmortem-interval-estimation
#20
Erwan Le Garff, Vadim Mesli, Elodie Marchand, Hélène Behal, Xavier Demondion, Anne Becart, Valery Hedouin
The evaluation of the postmortem interval (PMI) is an important consideration in forensic medicine. The time between death and the discovery thereof is extremely important, not only in terms of the legal process, but also for the course of the investigation. At the time of the discovery of human bones, the evaluation of the PMI is extremely difficult. To date, there is no really effective tool for this evaluation. The objective of our study is to characterize the architectural modifications of human bones using micro-tomography (μCT) in the postmortem period...
September 30, 2017: International Journal of Legal Medicine
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