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https://www.readbyqxmd.com/read/29164473/clinicopathological-and-immunohistochemical-study-of-head-and-neck-langerhans-cell-histiocytosis-from-latin-america
#1
Natália Rocha Bedran, Román Carlos, Bruno Augusto Benevenuto de Andrade, Ana Paula Silva Bueno, Mário José Romañach, Cristiane Bedran Milito
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplastic proliferation with variable clinical behavior caused by the accumulation of CD1a(+)/CD207(+) histiocytes, associated with a variable number of eosinophils, lymphocytes, plasma cells and multinucleated giant cells, most commonly observed in male children. LCH is uncommon in the head and neck region, occurring as ulcerated and reddened plaques or nodules that cause destruction of adjacent soft tissues and bone. The exact etiology of LCH is still unknown and controversial, with possible etiologic role of viruses, including Epstein-Barr virus (EBV)...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29145110/traumatic-separation-of-osseous-segments-in-a-double-layered-patella
#2
Andreas Jørgensen, Erik Brandt, Anton Ulstrup
INTRODUCTION: Double-layered patella is a rare intra-articular disorder associated with multiple epiphyseal dysplasia. PRESENTATION OF CASE: We present a case of a 40-year old man with acute pain in his left knee after a tackle during soccer play. DISCUSSION: Clinical examination and radiographs confirmed the diagnosis of a bilateral double-layered patella with traumatic separation of the osseous segments on the afflicted left side. Surgical management comprised of open arthrotomy and debridement of the bony interface...
November 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29102129/an-overview-of-cochlear-implant-electrode-array-designs
#3
REVIEW
Anandhan Dhanasingh, Claude Jolly
Cochlear implant electrode arrays are designed with specific characteristics that allow for the preservation of intra-cochlear structures during the insertion process, as well as during explantation. Straight lateral wall (LW) electrode arrays and pre-curved modiolar hugging (MH) electrode arrays are the two types that are commercially available. Although there is a third type of electrode array called the mid-scala (MS), which is positioned in the middle of the scala tympani (ST), and is usually considered as an MH type of electrode...
October 18, 2017: Hearing Research
https://www.readbyqxmd.com/read/29077495/isolated-fracture-of-the-medial-cuneiforma-case-report
#4
Nina S Babu, Gabriel V Gambardella, Melinda A Bowlby
An isolated medial cuneiform fracture is a rarely encountered injury of the foot. We present a case of an isolated medial cuneiform fracture in a patient after sustaining a fall from a 15-foot height. Treatment consisted of primary arthrodesis of the first tarsometatarsal joint due to a high degree of comminution and intra-articular pain. When radiographs are inconclusive and the index of suspicion remains high for a lesser tarsus fracture, computed tomography is recommended. In patients with minimal displacement, conservative treatment is usually successful in achieving osseous fusion...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29075421/cone-beam-computed-tomography-diagnostic-imaging-of-intra-osseous-mucoepidermoid-carcinoma-in-the-mandible
#5
Andre-Luiz-Ferreira Costa, Thasia-Luiz-Dias Ferreira, Haroldo-Arid Soares, Ana-Carla-Raphaelli Nahas-Scocate, Gonzalo-André-Parra Montesinos, Paulo-Henrique Braz-Silva
Intra-osseous mucoepidermoid carcinoma in the mandible is a rarely reported entity, comprising only 2-3% of all mucoepidermoid carcinomas. Unilocular and/or multilocular radiolucency is characteristic of mucoepidermoid carcinoma, but has a radiographic appearance similar to that of odontogenic benign and malignant tumors and thus cannot be accurately diagnosed on plain films. This article describes a case of a 36-year-old man with intra-osseous mucoepidermoid carcinoma in the left mandible. For a detailed analysis, both panoramic radiograph and cone beam computed tomograph were taken...
September 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29074442/conservative-management-of-an-atypical-intra-sinusal-ossifying-fibroma-associated-to-an-aneurysmal-bone-cyst
#6
R Saad, J-C Lutz, S Riehm, L Marcellin, C-I Gros, F Bornert
Ossifying fibroma (OF) is a benign fibro-osseous lesion mainly occurring in young adults and seems to originate from the periodontal ligament. Aneurysmal bone cyst (ABC) is a benign intraosseous lesion characterized by blood-filled spaces of various sizes. These two lesions can specifically affect the jaws and are commonly described in the literature. However, few cases describing an association of OF and ABC have been reported in the literature, especially in the maxillary sinus. We report the case of a 40-year-old male patient affected with an asymptomatic lesion with a dual component of OF and ABC laying in the maxillary sinus...
October 24, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29064415/solitary-intra-osseous-myofibroma-of-the-jaw-a-case-report-and-review-of-literature
#7
Anita Dhupar, Karla Carvalho, Poonam Sawant, Anita Spadigam, Shaheen Syed
Myofibroma is a rare benign spindle cell neoplasm in children that usually affects both soft tissue and bone in the head and neck region. Approximately one third of these cases are seen within jaw bones as solitary lesions. Solitary intra-osseous myofibroma of the jaw bone shares its clinical, radiographic and histological features with other spindle cell tumors. The rarity of this lesion can make diagnosis difficult for clinicians and pathologists. We report a case of a solitary intra-osseous myofibroma in the mandible of a nine-year-old child...
October 24, 2017: Children
https://www.readbyqxmd.com/read/29038780/pulmonary-ossification-and-microlithiasis-in-a-bitch-with-multicentric-mammary-tumors
#8
Mahir A G Kubba
Microliths and ossification were found in the lungs of a 12-year-old bitch suffering from compound mammary gland tumor which has disseminated in the inguinal lymph node glands and the lungs. Pulmonary ossification appeared grossly as irregular stony sharp particles which infiltrated the lung tissue and were readily recognizable from under the pleura as grayish sharp protruding particles. Microscopic examination revealed the existence of intra-alveolar single or multilobular particles of ossification which are formed of lamellated osseous substance with osteocytes in lacunae...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/29038634/3-dimensional-plate-in-management-of-sagittal-palatal-fracture-a-novel-technique
#9
Anshul Rai
The palatal fracture is rare. There are varieties of techniques mentioned in the literature for fixation of palatal fracture. The management with Kirschner wire fixation, maxillary arch stabilization with the arch bars, trans-palatal, intra osseous, inter-molar, figure of eight wiring were technique sensitive and having poor patient compliance. We recommended the use of isolated 3 dimensional plate for fixation of sagittal palatal fracture.
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28954748/traumatic-elbow-arthrotomy-after-motorcycle-accident-not-evident-on-ct
#10
John C Bunyasaranand, Nicholas C Foeger, Paul M Ryan
An 84-year-old man sustained a motorcycle accident resulting in a left elbow laceration. Orthopaedics was consulted to rule out traumatic arthrotomy. Radiographs and CT of the left elbow showed no acute osseous abnormalities and no evidence of traumatic arthrotomy. The wound was irrigated, dressed and splinted. On follow-up, the patient reported that he had been given clindamycin on a return visit to the emergency department for increased drainage. On inspection, the patient's wound was found sutured and draining purulent fluid...
September 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28951187/occipital-intraosseous-hemangioma-over-torcula-unusual-presentation-with-raised-intracranial-pressure
#11
K V L N Rao, Manish Beniwal, Vikas Vazhayil, Sampath Somanna, T C Yasha
BACKGROUND: Hemangiomas of the bone are benign, uncommon, slow growing lesions of the bone accounting for less than 1.0% of all bony neoplasms. Intra osseous occipital hemangiomas are very rare and occipital hemangioma presenting with features of raised intracranial tension is still rare, till now only 2 of such cases are reported. CASE DESCRIPTION: In this case report, we describe a unique case of a 30-year-old male patient presenting with raised ICP (Intracranial pressure), due to venous obstruction at the torcula...
September 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28925790/morphological-variation-of-the-caudal-fossa-of-domestic-cat-skulls-assessed-with-computed-tomography-and-geometric-morphometrics-analysis
#12
Caroline R Gordon, Thomas W Marchant, Joanna Lodzinska, Jeffery J Schoenebeck, Tobias Schwarz
Objectives This study aimed to investigate differences and demonstrate a normal range of morphological variation of the caudal fossa of the cranium of domestic cats. Methods CT scans of 32 domestic cat heads of 11 breeds were included. Isosurfaces from skulls were characterised through three-dimensional geometric morphometrics using geographical landmarks placed on the internal surface of the caudal fossa and foramen magnum. Raw data was transformed with a Procrustes fit and coordinate covariance was analysed by principal components to establish breed- and sex-level differences...
September 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28910888/-endoscopic-salvage-treatment-for-optic-neuropathy-caused-by-sinonasal-fibro-osseous-lesions
#13
J Deng, F H Chen, Y Y Lai, J B Shi
Objective: To summarize the surgical techniques, benefits and limitations of transnasal endoscopic resection and optic nerve decompression for patients with optic neuropathy caused by fibro-osseous lesions. Methods: Eight patients with optic neuropathy caused by fibro-osseous lesions who accepted endoscopic surgery of either resection of the lesion or decompression of optic nerve in Otorhinolaryngology Hospital, First Affiliated Hospital of Sun Yat-sen University from 2007 to 2016 were retrospectively reviewed and followed until April, 2017...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28798943/a-fatal-case-of-erdheim-chester-disease-with-hepatic-involvement
#14
Gokulakrishnan Balasubramanian, Alexandra Modiri, Marina Affi, Catherine E Hagen, Bjorn Batdorf, Kiyoko Oshima, Laura Michaelis, Kia Saeian
Erdheim-Chester disease (ECD) is a rare form of systemic histiocytosis, typically presenting with striking osseous involvement characterized by bilateral osteosclerosis and involvement of organs such as the lung, pituitary gland, heart, and brain. Liver involvement with ECD is extremely uncommon. We report a 56-year-old woman presenting with newly diagnosed cirrhosis and signs concerning for intra-abdominal malignancy, including omental caking and peritoneal thickening. Liver biopsy demonstrated xanthogranulomatous infiltration from ECD...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28791500/correlation-of-volumetric-growth-and-histological-grade-in-50-meningiomas
#15
Wai Cheong Soon, Daniel M Fountain, Kacper Koczyk, Mutwakil Abdulla, Sachin Giri, Kieren Allinson, Tomasz Matys, Mathew R Guilfoyle, Ramez W Kirollos, Thomas Santarius
INTRODUCTION: Advances in radiological imaging techniques have enabled volumetric measurements of meningiomas to be easily monitored using serial imaging scans. There is limited literature on the relationship between tumour growth rates and the WHO classification of meningiomas despite tumour growth being a major determinant of type and timing of intervention. Volumetric growth has been successfully used to assess growth of low-grade glioma; however, there is limited information on the volumetric growth rate (VGR) of meningiomas...
November 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28761275/efficacy-of-arthrocentesis-versus-arthrocentesis-with-sodium-hyaluronic-acid-in-temporomandibular-joint-osteoarthritis-a-comparison
#16
Tikaram Gurung, R K Singh, Shadab Mohammad, U S Pal, Abbas Ali Mahdi, Manoj Kumar
INTRODUCTION: Temporomandibular joint osteoarthritis (TMJ OA) is a degenerative disease characterized by deterioration of articular tissue with concomitant osseous changes in the condyle and/or articular eminence, joint positive for TMJ noise with jaw movement or function, crepitus detected on palpation on opening, closing, right/left lateral, or protrusive movement. Hyaluronic acid (HA) is a polysaccharide of the family of glycosaminoglycans. HA has been shown to improve and restore normal lubrication in joint, provide nutrition to the avascular articulating disc, and stabilize the joint...
January 2017: National Journal of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28706770/open-globe-injury-with-an-interesting-intra-ocular-foreign-body
#17
Ekjyot Gill, Matthew Shulman, Sid Schechet, Lawson Grumbine
Introduction: Cases of penetrating ocular trauma due to osseous material are limited, so reported incidents are valuable in determining outcomes and proper treatment courses. Case description: We report a case of an open globe injury of the left eye with an intraocular foreign body occurring after a firework exploded in the hand of a 22-year-old man. The patient presented with light perception vision in the injured eye with a full-thickness limbal laceration and dense hyphema obscuring fundoscopy. CT scan revealed a hyperdense foreign body juxtaposed to the lens...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28703117/early-diagnostics-of-temporomandibular-joint-structural-elements-injures-caused-by-traumatic-mandibular-bone-fractures
#18
Kh R Pohranychna, A R Stasyshyn, U D Matolych
A rapidly increasing number of mandibular condylar fractures and some complications related to injuries of temporomandibular elements make this study important. Intra-articular disorders lead to secondary pathological findings such as osteoarthritis, deforming osteoarthrosis, and temporomandibular joint ankylosis that limits mouth opening, mastication, swallowing, breathing, and decreased/lost working capacity or disability. Early diagnosis of intra-articular disorders can prevent from long-lasting functional complications caused by temporomandibular joint injuries...
June 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28685561/biomechanical-considerations-on-macromorphology-of-endosseous-dental-implants
#19
S Fanali, R Celletti
The aim of the present study is to define the optimal thread form and why the macroscopic shape of the dental intra-osseous implant interacts with the biological environment thus conditioning its lifespan and long-term success.
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28609125/minimum-2-year-outcomes-of-hip-arthroscopic-surgery-in-patients-with-acetabular-overcoverage-and-profunda-acetabulae-compared-with-matched-controls-with-normal-acetabular-coverage
#20
Sivashankar Chandrasekaran, Nader Darwish, Edwin O Chaharbakhshi, Carlos Suarez-Ahedo, Parth Lodhia, Benjamin G Domb
BACKGROUND: Advancements in instrumentation and techniques have extended the scope of hip arthroscopic surgery to treat complex osseous deformities that were previously best addressed with an open approach. Global pincer-type femoroacetabular impingement is an example of an abnormality requiring osseous correction with a technically challenging access point. PURPOSE: To report on the patterns of clinical presentation and intra-articular derangements, radiological associations, and minimum 2-year outcomes after hip arthroscopic surgery in patients with a lateral center edge angle (LCEA) >40° and profunda acetabulae in comparison with matched controls with normal acetabular coverage...
September 2017: American Journal of Sports Medicine
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