1,721,136 research outputs found
Neoplastic seeding of squamous carcinoma of the tongue onto the tracheotomy site: a case report[Insemenzamento neoplastico di carcinoma squamoso della lingua in sede di tracheotomia.]
No full textNeoplastic spreading by seeding occurs through mechanical transfer of some cells from a tumor mass onto healthy tissue of an implantation site. There is significant experimental proof of neoplastic cells seeding in surgical wounds although this seldom occurs in cases of surgery for head and neck tumors. We consider the description of a squamous cell carcinoma of the tongue which spread to the tracheotomy site, most probably through a iatrogenic seeding and conclude that use of a few simple precautions could minimize the frequency of such unfortunate complications
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Ameloblastic fibro-odontoma. Case report and review of the literature
No full textAmeloblastic fibro-odontoma (AFO) is defined by the World Health Organization (WHO) as a neoplasm composed of proliferating odontogenic epithelium. It is a benign, slow-growing, expansive tumour that clinically appears as a well-encapsulated, benign lesion. Histologically, AFO has been classified as an ameloblastic fibroma or odontoma. Despite numerous efforts, however, there is still considerable confusion concerning the nature, the histology and the therapy of these lesions. This paper reports an additional case of a large AFO and reviews the relevant literature regarding the clinical and pathologic features of this lesion. (C) 2009 European Association for Cranio-Maxillo-Facial SurgeryAmeloblastic fibro-odontoma (AFO) is defined by the World Health Organization (WHO) as a neoplasm composed of proliferating odontogenic epithelium. It is a benign, slow-growing, expansive tumour that clinically appears as a well-encapsulated, benign lesion. Histologically, AFO has been classified as an ameloblastic fibroma or odontoma. Despite numerous efforts, however, there is still considerable confusion concerning the nature, the histology and the therapy of these lesions. This paper reports an additional case of a large AFO and reviews the relevant literature regarding the clinical and pathologic features of this lesion. © 2009 European Association for Cranio-Maxillo-Facial Surgery
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Management of midcheek masses and tumors of the accessory parotid gland
No full textTumors of the lateral wall of the mouth have different origins and behaviors. These lesions often arise from salivary tissues, such as the accessory parotid gland, but tumors can also originate from the muscles, buccal fat pad, or other structures. Surgical approaches are limited in this region by the presence of the facial nerve and the Stensen's duct. In this article, we present 9 cases of midcheek masses that were operated on via extra- or intraoral approaches. We discuss the problems related to the diagnosis of such tumors, as well as the indications and rationales for different treatment approaches. © 2011 Mosby, Inc
Full arch restoration withcomputer-assisted implant surgery and immediate loading in edentulous ridges with dental fresh extraction sockets. One year results of 10 consecutively treted patients
No full textA novel implant system dedicate to hydraulic Schneiderian membrane elevation and simultaneously bone graft augmentation: An up-to 45 months retrospective clinical study
No full textPurpose To evaluate clinical and radiographic performance of a novel implant system that allows for hydraulic Schneiderian membrane elevation and simultaneously bone graft augmentation. Materials and methods Sixty-two consecutive patients with a mean age of 53.1 years and a severe atrophy of the posterior maxilla (3.0 to 7.0 mm) underwent 64 transcrestal sinus floor elevations and submerged implant placement. The following clinical and radiographic parameters were assessed: implant failure, any complications and bone gain measured using cone beam computed tomography. Results No patient dropped out. No implants failed and all the prostheses were uneventful at the last follow-up examination (mean 23.0 months; range 12–45). All the procedures were completed successfully, with elevation of the sinus membrane and insertion of bone graft and the dental implant at the planned site. No intraoperative or postoperative adverse events were observed, such as membrane tears or facial hematoma. The mean residual alveolar ridge height was 5.2 ± 1 mm (range 3.3–7.0 mm). Mean bone gain was 10.9 ± 2.43 mm (range 5.3–16.5) after an average healing period of 8 months. Conclusions Hydraulic elevation of the Schneiderian membrane using the iRaise sinus-lift system (Maxillent Ltd) can be considered a valuable treatment option for the rehabilitation of atrophic edentulous posterior maxillae
Comment on: Facial artery myomucosal flap, pedicled solely on the facial artery: Experimental design study on survival
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