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https://www.readbyqxmd.com/read/28535138/paramedian-submandibular-approach-for-removal-of-foreign-bodies-in-the-pterygoid-muscle-in-two-dogs
#1
Elizabeth Gettinger, Daniel Smeak, Angela Marolf
The purpose of this report is to document a unique location of an oropharyngeal foreign body, diagnosed via contrast computed tomography (CT), as well as a novel surgical approach to the pterygoid muscle region. Oropharyngeal foreign objects are an uncommon but potentially serious disease that can lead to chronic abscessation and pain. Two dogs were presented with chronic complaints, including pain and inability to fully open the mouth for a 1 yr and 5 mo duration, respectively. There was no history or evidence of skin sinus or submandibular/cervical swelling on physical examination of either dog...
May 23, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28534833/coagulating-colubrids-evolutionary-pathophysiological-and-biodiscovery-implications-of-venom-variations-between-boomslang-dispholidus-typus-and-twig-snake-thelotornis-mossambicanus
#2
Jordan Debono, James Dobson, Nicholas R Casewell, Anthony Romilio, Bin Li, Nyoman Kurniawan, Karine Mardon, Vera Weisbecker, Amanda Nouwens, Hang Fai Kwok, Bryan G Fry
Venoms can deleteriously affect any physiological system reachable by the bloodstream, including directly interfering with the coagulation cascade. Such coagulopathic toxins may be anticoagulants or procoagulants. Snake venoms are unique in their use of procoagulant toxins for predatory purposes. The boomslang (Dispholidus typus) and the twig snakes (Thelotornis species) are iconic African snakes belonging to the family Colubridae. Both species produce strikingly similar lethal procoagulant pathologies. Despite these similarities, antivenom is only produced for treating bites by D...
May 19, 2017: Toxins
https://www.readbyqxmd.com/read/28534430/variability-in-axillary-lymph-node-delineation-for-breast-cancer-radiotherapy-in-presence-of-guidelines-on-a-multi-institutional-platform
#3
Delia Ciardo, Angela Argenone, Genoveva Ionela Boboc, Francesca Cucciarelli, Fiorenza De Rose, Maria Carmen De Santis, Alessandra Huscher, Edy Ippolito, Maria Rosa La Porta, Lorenza Marino, Ilaria Meaglia, Isabella Palumbo, Francesca Rossi, Paolo Alpi, Mario Bignardi, Alessio Bonanni, Domenico Cante, Tino Ceschia, Letizia Fabbietti, Marco Lupattelli, Elisa Donatella Mantero, Alessia Monaco, Patrizia Porcu, Vincenzo Ravo, Sonia Silipigni, Angelo Tozzi, Vincenza Umina, Dario Zerini, Luigi Bordonaro, Giorgia Capezzali, Elena Clerici, Sarah Pia Colangione, Michela Dispinzieri, Jessica Dognini, Laura Donadoni, Sara Falivene, Alessandra Fozza, Barbara Grilli, Roberta Guarnaccia, Eva Iannacone, Valentina Lancellotta, Agnese Prisco, Rosalinda Ricotti, Roberto Orecchia, Barbara Alicja Jereczek-Fossa, Maria Cristina Leonardi
AIM: To quantify the variability between radiation oncologists (ROs) when outlining axillary nodes in breast cancer. MATERIAL AND METHODS: For each participating center, three ROs with different levels of expertise, i.e., junior (J), senior (S) and expert (E), contoured axillary nodal levels (L1, L2, L3 and L4) on the CT images of three different patients (P) of an increasing degree of anatomical complexity (from P1 to P2 to P3), according to contouring guidelines...
May 23, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28525494/optimal-entry-point-and-trajectory-for-anterior-c1-lateral-mass-screw
#4
Yong Hu, Wei-Xin Dong, William Ryan Spiker, Zhen-Shan Yuan, Xiao-Yang Sun, Jiao Zhang, Hui Xie, Todd J Albert
STUDY DESIGN: A radiographic analysis of the anatomy of the C1 lateral mass using computed tomography (CT) scans and Mimics software. OBJECTIVE: To define the anatomy of the C1 lateral mass and make recommendations for optimal entry point and trajectory for anterior C1 lateral mass screws. SUMMARY OF BACKGROUND DATA: Although various posterior insertion angles and entry points for screw insertion have been proposed for posterior C1 lateral mass screws, no large series have been performed to assess the ideal entry point and optimal trajectory for anterior C1 lateral mass screw placement...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525474/anatomy-of-lamina-in-the-subaxial-cervical-spine-with-the-special-reference-to-translaminar-screws-ct-and-cadaveric-analysis-with-screw-trajectory-simulation
#5
Woojin Cho, Jason T Le, Adam L Shimer, Brian C Werner, John A Glaser, Francis H Shen
STUDY DESIGN: A cadaveric study. SUMMARY OF BACKGROUND DATA: Translaminar screws were initially developed for C2 fixation. Since then, their usage has expanded to include the subaxial cervical spine, and thoracic and lumbar spine. To the best of our knowledge, special anatomy for inserting translaminar screws in the subaxial cervical spine has not been studied. OBJECTIVE: To report the special anatomy for inserting translaminar screws in the subaxial cervical spine...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524798/revisiting-the-rules-for-freehand-ventriculostomy-a-virtual-reality-analysis
#6
Clemens Raabe, Jens Fichtner, Jürgen Beck, Jan Gralla, Andreas Raabe
OBJECTIVE Frontal ventriculostomy is one of the most frequent and standardized procedures in neurosurgery. However, many first and subsequent punctures miss the target, and suboptimal placement or misplacement of the catheter is common. The authors therefore reexamined the landmarks and rules to determine the entry point and trajectory with the best hit rate (HtR). METHODS The authors randomly selected CT scans from their institution's DICOM pool that had been obtained in 50 patients with normal ventricular and skull anatomy and without ventricular puncture...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28524792/analysis-and-interrater-reliability-of-pb-c2-using-mri-and-ct-data-from-the-park-reeves-syringomyelia-research-consortium-on-behalf-of-the-pediatric-craniocervical-society
#7
Todd C Hankinson, Gerald F Tuite, Dagmara I Moscoso, Leslie C Robinson, James C Torner, David D Limbrick, Tae Sung Park, Richard C E Anderson
OBJECTIVE The distance to the ventral dura, perpendicular to the basion to C2 line (pB-C2), is commonly employed as a measure describing the anatomy of the craniovertebral junction. However, both the reliability among observers and the clinical utility of this measurement in the context of Chiari malformation Type I (CM-I) have been incompletely determined. METHODS Data were reviewed from the first 600 patients enrolled in the Park-Reeves Syringomyelia Research Consortium with CM-I and syringomyelia. Thirty-one cases were identified in which both CT and MRI studies were available for review...
May 19, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28523041/functional-endoscopic-sinus-surgery-as-a-primary-modality-of-treatment-for-primary-and-recurrent-nasal-polyposis
#8
Mohammad Shahid Gohar, Saleem Asif Niazi, Sohail Baber Niazi
OBJECTIVES: To describe the efficacy of Functional Endoscopic Sinus Surgery(FESS) in our set up in comparison with other published studies to treat primary and recurrent nasal polyposis. METHOD: This descriptive study was conducted in 02 years at Ear Nose Throat Department Combined Military Hospital (CMH) Multan from October 2013 to October 2015. Convenient sample comprising 116 patients of both sexes of age group from 18 to 60 years were selected from ENT Out Patient Department, with documented diagnosis of nasal polyposis that underwent functional endoscopic sinus surgery...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28521354/surgical-microanatomy-of-the-posterior-condylar-emissary-vein-and-its-anatomical-variations-for-the-transcondylar-fossa-approach
#9
Nakao Ota, Rokuya Tanikawa, Tsutomu Yoshikane, Masataka Miyama, Takanori Miyazaki, Yu Kinoshita, Hidetoshi Matsukawa, Takeshi Yanagisawa, Fumihiro Sakakibara, Go Suzuki, Norihiro Saito, Shiro Miyata, Kosumo Noda, Toshiyuki Tsuboi, Rihei Takeda, Hiroyasu Kamiyama, Sadahisa Tokuda, Kyousuke Kamada
BACKGROUND: It is essential to identify and be aware of the anatomy of the posterior condylar emissary vein (PCEV) for achieving an adequate operative field for the transcondylar fossa approach (TCFA). OBJECTIVE: To describe the variations in the drainage patterns of PCEVs and the technical issues encountered in such cases. METHODS: This was a retrospective analysis of the anatomy of PCEVs in 104 sides in 52 cases treated by the TCFA. Preoperative findings of multidetector-row computed tomography (CT) and CT venography (CTV) were compared with the intraoperative findings...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28518066/scaled-anatomical-model-creation-of-biomedical-tomographic-imaging-data-and-associated-labels-for-subsequent-sub-surface-laser-engraving-ssle-of-glass-crystals
#10
Aislinn M Betts, Matthew T McGoldrick, Christopher R Dethlefs, Justin Piotrowicz, Tony Van Avermaete, Jeff Maki, Steve Gerstler, W M Leevy
Biomedical imaging modalities like computed tomography (CT) and magnetic resonance (MR) provide excellent platforms for collecting three-dimensional data sets of patient or specimen anatomy in clinical or preclinical settings. However, the use of a virtual, on-screen display limits the ability of these tomographic images to fully convey the anatomical information embedded within. One solution is to interface a biomedical imaging data set with 3D printing technology to generate a physical replica. Here we detail a complementary method to visualize tomographic imaging data with a hand-held model: Sub Surface Laser Engraving (SSLE) of crystal glass...
April 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28517240/imaging-after-treatment-in-uterine-malignancies-spectrum-of-normal-findings-and-most-common-complications
#11
REVIEW
Maura Miccò, Anna Maria Telesca, Benedetta Gui, Pier Paolo Grimaldi, Francesco Cambi, Maria Giulia Marini, Anna Lia Valentini, Lorenzo Bonomo
Uterine malignancies account for the majority of gynaecologic cancers. Different treatment options are available depending on histology, disease grade and stage. Hysterectomy is the most frequent surgical procedure. Chemotherapy and radiation therapy (CRT) represents the preferred therapeutic choice for locally advanced uterine and cervical malignancies. Imaging of the female pelvis following these treatments is particularly challenging due to alteration of the normal anatomy. Radiologists should be familiar with both the expected post-treatment imaging findings and the imaging features of possible complications to make the correct interpretation and avoid possible pitfalls...
May 18, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28517034/comparative-musculoskeletal-anatomy-of-chameleon-limbs-with-implications-for-the-evolution-of-arboreal-locomotion-in-lizards-and-for-teratology
#12
Julia L Molnar, Raul E Diaz, Tautis Skorka, Grant Dagliyan, Rui Diogo
Chameleon species have recently been adopted as models for evo-devo and macroevolutionary processes. However, most anatomical and developmental studies of chameleons focus on the skeleton, and information about their soft tissues is scarce. Here, we provide a detailed morphological description based on contrast enhanced micro-CT scans and dissections of the adult phenotype of all the forelimb and hindlimb muscles of the Veiled Chameleon (Chamaeleo calyptratus) and compare these muscles with those of other chameleons and lizards...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28514499/surface-anatomy-of-major-anatomical-landmarks-of-the-neck-in-an-adult-population-a-ct-evaluation-of-vertebral-level
#13
Masroor Badshah, Roger Soames, Muhammad Ibrahim Marwat, Muhammad Jaffar Khan, Adnan Khan
Introduction To compare the projectional surface anatomy of healthy individuals in an adult population with those with a thyroid mass, using computed tomography (CT). Methods Sixteen slice CT images of 101 individuals were analyzed using a 32-bit Radiant DICOM viewer to establish the relationships among major anatomical landmarks in the neck and their vertebral levels. The structures investigated included: hard palate (HP), hyoid bone (HB) including body and lesser horns, soft palate (SP), thyroid gland (TG) (both superior and inferior poles), thyroid gland anteroposterior (APD) and superoinferior (SID) diameters, thyroid isthmus (TI) superoinferior dimension, epiglottis, vertebral arteries (right and left), and both right and left parotid glands (superior and inferior extents)...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28514496/a-reappraisal-of-children-s-thoracic-surface-anatomy
#14
Nicholas Fischer, Jonty Morreau, Ramanen Sugunesegran, Kiarash Taghavi, Ali Mirjalili
Accurate knowledge of surface anatomy is fundamental to safe clinical practice. A paucity of evidence in the literature regarding thoracic surface anatomy in children was identified. The associations between surface landmarks and internal structures were meticulously analyzed by reviewing high quality computed tomography (CT) images of 77 children aged from four days to 12 years. The results confirmed that the sternal angle is an accurate surface landmark for the azygos-superior vena cava junction in a plane through to the level of upper T4 from birth to age four, and to lower T4 in older children...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28513864/the-influence-of-non-rigid-anatomy-and-patient-positioning-on-endoscopy-ct-image-registration-in-the-head-and-neck
#15
W Scott Ingram, Jinzhong Yang, Richard Wendt, Beth M Beadle, Arvind Rao, Xin A Wang, Laurence E Court
PURPOSE: To assess the influence of non-rigid anatomy and differences in patient positioning between CT acquisition and endoscopic examination on endoscopy-CT image registration in the head and neck. METHODS: Radiotherapy planning CTs and 31-35 daily treatment-room CTs were acquired for nineteen patients. Diagnostic CTs were acquired for thirteen of the patients. The surfaces of the airways were segmented on all scans and triangular meshes were created to render virtual endoscopic images with a calibrated pinhole model of an endoscope...
May 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28512548/relationship-between-pulp-tooth-volume-ratios-and-chronological-age-in-different-anterior-teeth-on-cbct
#16
Nima Biuki, Tahmineh Razi, Masoumeh Faramarzi
BACKGROUND: The CBCT imaging technique exhibits proper accuracy to determine the internal anatomy of teeth. Therefore, this technique can use to estimate age by measuring the amount of decrease in the volume of the pulpal cavity of teeth. The aim of the present study was to evaluate the correlation between chronological age and pulp-to-tooth volume ratios in anterior teeth with the use of the CBCT technique and to determine a regression model to estimate human age. MATERIAL AND METHODS: In this present descriptive-analytical study, 122 subjects (46 males and 76 females), with an age range of 13-70 years, were evaluated...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512008/3d-printing-and-modelling-of-customized-implants-and-surgical-guides-for-non-human-primates
#17
Xing Chen, Jessy K Possel, Catherine Wacongne, Anne F van Ham, P Christiaan Klink, Pieter R Roelfsema
BACKGROUND: Primate neurobiologists use chronically implanted devices such as pedestals for head stabilization and chambers to gain access to the brain and study its activity. Such implants are skull-mounted, and made from a hard, durable material, such as titanium. NEW METHOD: Here we present a low-cost method of creating customized 3D-printed cranial implants that are tailored to the anatomy of individual animals. We performed pre-surgical computed tomography (CT) and magnetic resonance (MR) scans to generate three-dimensional (3D) models of the skull and brain...
May 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28506780/a-novel-approach-for-regional-anaesthesia-of-the-auricular-region-in-horses-an-anatomic-and-imaging-study
#18
Ilaria Cerasoli, Pieter Cornillie, Frank Gasthuys, Ingrid Gielen, Stijn Schauvliege
OBJECTIVE: To investigate the anatomy of the ear innervation in horses and develop a new approach for the block of the internal and external pinna and acoustic meatus. STUDY DESIGN: Prospective, descriptive, cadaveric study. ANIMALS: A total of 25 heads and necks from horse cadavers. METHODS: Phase I: anatomical dissection and dye deposition on 19 heads. With the head positioned in lateral recumbency, 10 mL methylene blue (1:1 sterile water) for the internal auricular and 2 mL for the great auricular nerve block were injected in 21 ears (seven left, 10 right and two bilaterally)...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28506491/mapping-of-glenoid-bone-loss-in-recurrent-anterior-shoulder-instability-is-there-a-particular-deficit-pattern
#19
Benjamin Bockmann, Arne Johannes Venjakob, Frank Reichwein, Marthe Hagenacker, Wolfgang Nebelung
BACKGROUND: Glenoid bone loss in recurrent anterior shoulder instability is a challenging problem for shoulder surgeons, and knowledge about the anatomy of glenoid deficits is scarce. In this study, we tried to evaluate the pattern of this pathology. METHODS: Our analysis included 44 shoulders from 44 patients with recurrent anterior shoulder instability accompanied by a clinically relevant glenoid bone loss. The defect size, the localization of the inferior defect edge, and the defect angle were measured, and osseous landmarks were identified...
May 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28503239/a-case-of-renal-cell-carcinoma-in-a-patient-with-situs-inversus-operative-considerations-and-a-review-of-the-literature
#20
Justin Oake, Darrel Drachenberg
Situs inversus, an uncommon mirror-image reversal of the major visceral and thoracic organs, is seldom of medical significance. However, the recognition of their unique anatomy is extremely important for those requiring surgical intervention. There are very few reported cases of renal cell carcinoma (RCC) developing in people with situs inversus. To our knowledge, this is the first reported case in Canada. A review of the literature only identified nine published cases worldwide. Here, we review and summarize pertinent information, including patient age and sex, size and location of tumour, method of surgery, and pathology...
May 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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