1,720,958 research outputs found
Ovarian Leiomyosarcoma as Incidentaloma during Postbariatric Abdominoplasty Surgical Procedure
Full text linkThis case report addresses the discovery, surgical management, histology, and postoperative outcomes of an incidentaloma during the preoperative evaluation of a 58-year-old woman planning to undergo abdominoplasty and hernia correction after bariatric surgery. The patients computed tomography scan revealed a large pelvic mass in addition to an enlarged uterus and an umbilical hernia. Subsequent surgical intervention included umbilical hernia repair, subtotal omental excision, and en-bloc removal of the uterine and ovarian structures. Histological analysis confirmed the mass as a high-grade utero-ovarian leiomyosarcoma. The patient received adjuvant chemotherapy and demonstrated a positive response in follow-up imaging at 6 months, with reduced mass size and no significant lymphadenopathy. Both aesthetic and morpho-functional outcomes were satisfactory. The report highlights the challenges of diagnosing and treating incidentalomas, emphasizing the need for individualized management. It discusses the rarity of primary ovarian leiomyosarcoma and the surgical approach used. The case ultimately emphasizes the importance of multidisciplinary clinical evaluations in ensuring comprehensive care for patients with unexpected radiological findings, such as utero-ovarian leiomyosarcoma
Rare breast neoplasms: is there any peculiar feature on magnetic resonance mammography?
No full textPURPOSE: The purpose of this study is to describe the semiological features of rare breast neoplasms at magnetic resonance mammography (MRM).
MATERIALS AND METHODS: Out of 468 MRMs of patients with a histological diagnosis of breast malignancy, 27 (5.7%) cases of rare breast neoplasms, confirmed by definitive histological analysis on surgical specimens, were selected: four (0.9%) intracystic papillary neoplasms, four (0.9%) intraductal papillary neoplasms, five (1.0%) invasive papillary neoplasms, two (0.4%) medullary carcinomas, seven (1.5%) mucinous carcinomas, three (0.6%) tubular carcinomas, one (0.2%) tubulo-lobular carcinoma and one (0.2%) desmoid tumour. Two radiologists evaluated the MRM images according to Fischer criteria and indicated a level of diagnostic suspicion. In particular, MRM lesion morphology and enhancement characteristics were analysed.
RESULTS: No semiologic features of malignancy or peculiar appearances indicating rare breast neoplasm were identified. On the contrary, MRM appearance was nonspecific and often suggestive of probably benign (Breast Imaging Reporting and Data System-BI-RADS 3) (40%) or benign lesions (BI-RADS 2) (7.5%), or lesions were undetectable at MRM (BI-RADS 1) (7.5%).
CONCLUSIONS: Frequently, rare breast neoplasms show low suspicious morphologic and kinetic patterns at MRM, and they are often classified as indeterminate lesions. This is probably due to their high grade of differentiation and their histological features
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
Orthoplasty in the Management of Lower Limb BJI
No full textOsteomyelitis, a severe and debilitating bone
infection, poses a significant challenge to both
patients and healthcare professionals, necessitating
innovative approaches for effective treatment
and reconstruction. In the realm of plastic surgery,
the management of osteomyelitis has witnessed
a transformative change with the evolution
of both microsurgical and non-microsurgical
approaches. Through an in-depth analysis of the
current literature, case studies, and expert
insights, this chapter seeks to bridge the gap
between theoretical knowledge and practical
application, facilitating a nuanced understanding
of the intricacies involved in the plastic surgical
treatment of osteomyelitis, providing perspectives
on the multifaceted strategies employed to
address incapacitating bone infections
Reverse abdominoplasty: easily solving complicated situations
Full text linkBackgroundEpigastric tissue abundancy after abdominoplasty or liposuction is a complicated scenario that requires a precise and targeted approach. Especially when concurrent mammoplasty is planned or has already been done by the patient, a surgical operation through a submammary skin incision can solve this problem.AimTo showcase our personal experience regarding reverse abdominoplasty and compare it to the state of the art.MethodsTo identify indications, possible complications and outcomes, detailed surgical insights as well as graphical examples are provided. In addition, our personal experience from the last four years is showcased and compared with the literature using PubMed and Cochrane Library databases with Reverse AND Abdominoplasty as search strings.Results All the 12 patients operated in our facilities between 2020 and 2024 had either a pre-existing submammary scar or a plan to undergo a contestual mammoplasty; at a mean of 25,1 weeks follow up, one major complication occurred.DiscussionThere is a lack of publications on reverse abdominoplasty. Small case series are available in the literature, most of which focus on aesthetic indications. Only a few cases address the reconstructive implications of this surgical technique. In our experience, the concomitant desire or necessity of a mammoplasty and an already present inframammary scar favor the surgery. Careful recreation of a new inframammary sulcus must be considered to avoid unpleasant complications.ConclusionsDespite the poor literature supporting this technique, reverse abdominoplasty is a must-known procedure for successfully addressing thorny abdominal wall conditions and is characterized by consistent, replicable and safe outcomes
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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