1,721,003 research outputs found
Syngnathia: A rare case of maxillo-mandibular fusion in an adult patient
No full textSyngnathia is a congenital bony fusion of the mandible to maxilla involving the pediatric age. it is a rare condition that may comprise soft tissue or hard tissues. according to the literature, to our knowledge, 29 cases have been reported during childhood. This clinical condition is usually discovered immediately after birth, since the child is not able to open the mouth, and is unable to feed himself adequately. generally the surgical treatment consists of multiple procedures to release bony fusion, or debride adhesions during the first few days of life. When the lock involves only the soft tissue, the treatment consists in removal the mucosal synechia, by performing an intraoral approach. To our knowledge, herein we describe the first case of unilateral syngnathia in adulthood. A 27-year-old African male was referred to our Department of Maxillo-Facial Surgery of the Federico ii university of Naples in January 2008. The patient reported to have been victim of a direct trauma to the face as a result of an assault when he was child, during the second civil war in Sudan. he was hit with a blunt instrument on the right maxillo-zygomatic region. in conclusion, as far as we know, this is the older patient affected by syngnathia with a suspicion of traumatic etiology, and none of the patients reported in the literature had a traumatic etiology
Endoscopic transorbital and transcranial multiportal resection of a sphenoorbital meningiomas with custom bone 3D printing reconstruction: Case report
No full textBackground: Sphenoorbital meningiomas (SOM) harbor intrinsic features that render their surgical management and the reconstruction of the resulting bony defect overtly challenging. Methods: A 70-year-old woman, harboring a long-standing left frontotemporal bony swelling conservatively managed, presented with progressive left proptosis. Radiological features were consistent with an en plaque SOM. A one-step multiportal transcranial and endoscopic transorbital approach (TOA) with custom bone three-dimensional (3D) printing reconstruction using polymethylmethacrylate (PMMA) was scheduled. Results: Postoperative functional and aesthetic results were excellent, with proptosis and calvarian deformity resolution. Tumor subtotal resection was achieved. Histopathological diagnosis confirmed a transitional meningioma (WHO grade I). Conclusions: The endoscopic TOA, isolated or as part of a multiportal strategy, has entered the surgical armamentarium for the treatment of SOMs. A customized PMMA cranioplasty can be considered a possible option for the reconstruction of large bony defects in a one-step fashion
A giant intramuscular lipoma of tongue: A case report and literature review
No full textWe describe here a rare case of giant intramuscular lipoma of the tongue. A 67-year-old male patient presented to our department with a large tumefaction on the tip of the tongue that he refers has started to grow about 20 years before. Clinical examination revealed a yellowish lesion, measuring no more than 5 cm in diameter, protruding from the lingual surface. Histological examination showed a non-encapsulated lipomatous tumor composed of mature adipocytes, uniform in size and shape, diffusely infiltrating striated muscle fibers of the tongue. The patient is fine with no local recurrence after 15 months follow-up period
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
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Facial Soft Tissue Ptosis: A Quantitative Analysis using 3d Facial Scan App For iPhone
No full textAlthough the modifications of the aging face have been widely described, to our knowledge, there are no studies that quantitatively analyze the degree of soft tissues facial ptosis. Using a specific iPhone application, the faces of a heterogeneous group of volunteers were scanned and studied with the aim to virtually measure the entity of facial ptosis.Two facial scans, upright and supine, were performed by using the Bellus3D Face app for iPhone in a sample of 60 volunteers. We virtually superimposed the two scans, and then, we calculated the discrepancy between them through the Geomagic Design X 3D software. A multivariate regression statistical model was used to analyze the correlation between the mean discrepancy values compared to three main variables: age, BMI and gender. Mean ptosis increases with age (coeff. = 0.02; 95% CI = 0.01–0.02, p < 0.001), BMI (coeff. = 0.03; 95% CI = 0.01–0.05; p < 0.001) and has been found higher in females (female versus male: coeff. = 0.22; 95% CI = 0.13–0.31; p < 0.001). The method we used allowed us to measure the degree of ptosis, and to make a complete morphological study of the effect of gravity on the facial surface in a very accurate, low cost and easily reproducible way
A rare case of blindness due to an odontogenic abscess
No full textOrbital cellulitis can be caused by distant infective foci, local spread and surgical procedures. Typical symptoms and signs are conjunctival chemosis, pain, extraocular muscles dysfunction, proptosis and visual impairment; systemic symptoms are fever and general discomfort. Nowadays death is uncommon, due to prompt antimicrobial and surgical management, but loss of vision remains an important cause of morbidity. This article shows the case of a 50-years-old woman referred to the Department of Orbital Pathology of the hospital Polyclinic Federico ii (Naples) with a severe case of odontogenic orbital cellulitis. The orbital infection caused bulbar perforation and endophthalmitis. an evisceration surgery was indicated to avoid a risky sympathetic endophthalmitis. Surgical and medical prompt therapy lead to clinical improvement. Odontogenic orbital cellulitis is a rare, serious infection which can lead to endophthalmitis and visual loss. unfortunately, the dental origin of infection can be missed during the examination. For these reasons, it’s important for the practitioner to consider this source or infection. The management consists of prompt medical therapy, intensive monitoring, cultural exams, serial imaging and proper surgical intervention, if needed. Therefore, early hospitalization and multidisciplinary approach are mandatory
Adenoid cystic carcinoma of accessory parotid gland: A case report and review of the literature
No full textAccessory parotid gland (APG) is a small salivary gland tissue ranging from 0.5 to 1 cm diameter in size, located almost 7 mm anterior to the main parotid gland. APG is a common anatomical variant, but accessory parotid gland tumors are very rare, accounting for only 1%–7.7% of all parotid gland tumors. We present a case of adenoid cystic carcinoma involving accessory parotid gland, a very rare condition with only, to the best of our knowledge, other 7 cases described in literature. Surgical excision was performed and eventful postoperative recovery, without severe surgical complications and no signs of recurrence at 12 months of follow-up was obtained, with a good cosmetic result. An extensive review of the literature has been performed and the results are presented in order to establish a correct diagnostic-therapeutic protocol for these oncologic patients
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