1,720,978 research outputs found
Nodal and extranodal soft tissue polymorphous hemangioendothelioma: a case report and review of the literature
No full textPrimary signet-ring cell carcinoma of the uterine cervix with long term follow-up: case report.
No full textBACKGROUND: The uterine cervix represents an exceptional localization of signet-ring cell adenocarcinoma (SRCA). Most commonly, endocervical tumors with such morphology are metastatic from the breast or gastrointestinal tract while primary pure or almost pure tumors are extremely rare. No previous case of primary pure endocervical SRCA with follow-up longer than three years has been found in the literature. CASE REPORT: The present report describes such a case of a 46-year-old woman without evidence of recurrence eight years after the diagnosis. The patient was referred to the Gynecology Department for persistent abnormal vaginal bleeding of three months duration. Specular examination and colposcopy revealed a cervical polypoid lesion occupying the posterior lip of the cervix and protruding from the external uterine orifice. A biopsy of the lesion was interpreted by the pathologist as SRCA. An extensive search for an extrapelvic primary cancer was undertaken but revealed no evidence of malignancy. The patient underwent radical hysterectomy with bilateral salpingo-oophorectomy and pelvic and paraaortic lymph node sampling for FIGO Stage 1B1 cervical cancer without any adjuvant chemo- or radiotherapy. The histological diagnosis showed neoplastic signet-ring cells confined in the head of the cervical polyps with minimal stromal infiltration. After surgery the patient underwent close followup including periodic cervicovaginal smears, bimanual vaginal examination, complete laboratory tests, ultrasound and abdominopelvic computed tomography. CONCLUSIONS: The prognostic relevance of primitive pure SRCA in the uterine cervix is unclear because of the relatively small number of cases. However the two early deaths out of six reported cases and the absence of follow-up longer than three years for the other affected patients, seem to suggest an aggressive behavior. The present case represents an exceptional long-term survival, probably related to an early diagnosis and a prominent polypoid growth of the neoplasia outside the uterus
Synchronous bilateral multifocal canalicular adenoma: a case report of an unusual finding
No full textRare Primitive Lung Adenocarcinoma in Larynx: A Case Report
No full textLaryngeal metastasis from a primitive distant cancer is a rare finding in clinical practice. In this paper is presented the case of a 63-year-old patient treated for lung adenocarcinoma metastasis in the supraglottic larynx. A review of literature suggests how the treatment of this kind of case is not unique
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
Extraskeletal chondroma of the masseter muscle: a case report with review of the literature.
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