1,720,961 research outputs found

    Synergic effect of buccal fat pad pedicled flap and dermal acellular matrix for large cheek defect

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    Reconstruction of large defects of the upper cheek defects still remains a challenge for the surgeon, who can apply different techniques. We present a new method involving the use of a dermal regeneration template to achieve an improved, faster healing of pedicled buccal fat flap in a 75-year-old woman affected by melanoma of the upper-middle cheek. The tumor involved soft tissue, zygomatic arch and periocular fact. The choice of the surgical technique consisted first in the creation of a buccal fat pad to restore the important lack of tissue over the underlying bones, and then in the position of a dermal acellular matrix (Integra® Dermal Regeneration Template; Integra LifeSciences Holdings Corporation, Plainsboro, NJ, USA). Three weeks later, once the neodermal formation was finished, a split thickness graft was placed. This is a not yet described association that represents a good surgical option for the restoration of large cheek defects that allows good functional and cosmetic result in older patient when minimal surgical invasion and operative duration are necessary because of a patient's general condition. The postoperative course with this surgical technique was regular and a good functional result was achieved. This technique provides an adequate functional coverage, a restoration of soft tissue lacking and an acceptable cosmetic result without ectropion

    A rare case of solitary fibrous tumor of the temporal region: 7-year-follow-up clinical-radiographic evaluation and literature review

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    Solitary fibrous tumor is a rare spindle-cell neoplasm of mesenchymal origin. In head and neck region, the tumors present slow-growing masses, often with local compressive symptoms. Although it is generally benign, malignant variants have been identified. The radiological diagnosis of solitary fibrous tumor is usually based on computer tomography and/or magnetic resonance imaging. Microscopically, a solitary fibrous tumor is characteristically a circumscribed neoplasm composed of variably cellular and patternless distributions of bland spindle and ovoid cells within variably collagenous stroma that frequently shows areas of dense hyalinisation, as well as interspersed large branching or “staghorn”- shaped thin-walled vessels. Immunohistochemical staining is very effective to distinguish solitary fibrous tumors from other fibroblastic tumors. Recently, NAB2–STAT6 gene fusion derived from inv12 (q13q13) has been reported as the genetic hallmark of solitary fibrous tumor. Complete local surgical excision appears to be the treatment of choice for solitary fibrous tumor of the head and neck region. Recurrence was reported in 5% of cases. The median recurrence-free interval was 36.5 months. We report the case of a solitary fibrous tumor of the temporal region, surgically excised and with no clinical and/or radiological signs of recurrence after 7 years of follow-up

    The Intraoral Approach for Aesthetic Restoration of Posttraumatic Zygomatic Arch Deformities

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    Minimally invasive oral and maxillofacial surgery is now being developed for virtuallyall minor and major oral and maxillo- facial surgeries, and developments are now focused on facial trauma surgery. This article assesses the feasibility of reducing isolated zy- gomatic arch fractures using the intraoral lateral coronoid approach. The procedure is cost-effective and timesaving, as it can be per- formed under local anesthesia in an emergency department or simi- lar clinical setting and does not need postoperative hospitalization if no other comorbidities are present

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Variations on the Author

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    “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
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