1,721,013 research outputs found
Pancreas-preserving segmental duodenectomy for gastrointestinal stromal tumor of the duodenum and splenectomy for splenic angiosarcoma
No full textBACKGROUND: Gastrointestinal stromal tumors are the most common mesenchymal tumors of the gastrointestinal tract and occur rarely in the duodenum. Splenic angiosarcoma is an aggressive neoplasm with an extremely poor prognosis. METHODS: We report a case of a 70-year-old man hospitalized for abdominal pain in the upper quadrants, dyspepsia and nausea, previously treated for Hodgkin lymphoma 30 years ago. Abdominal CT showed a solid nodular lesion in the third portion of the duodenum, the presence of retropancreatic, aortic and caval lymph nodes, and four nodular splenic masses. 111In-octreotide scintigraphy revealed pathological tissue accumulation in the duodenal region, and in the retropancreatic, retroduodenal, aortic and caval lymph nodes, suggesting a nonfunctioning neuroendocrine peripancreatic tumor. RESULTS: At exploratory laparotomy, an exophytic soft tumor was found originating from the third portion of the duodenum. Pancreas-preserving duodenectomy with duodenojejunostomy, splenectomy and lymphnodectomy of retropancreatic aortic and caval lymph nodes were performed. Pathological evaluation and immunohistochemical studies showed the presence of a duodenal gastrointestinal stromal tumor with low mitotic activity and a well-differentiated angiosarcoma localized to the spleen and invading lymph nodes. CONCLUSIONS: We speculated that the angiosarcoma and duodenal gastrointestinal stromal tumors of this patient were due to the treatment of Hodgkin lymphoma with radiotherapy 30 years ago. Pancreas-preserving segmental duodenectomy can be used to treat non-malignant neoplasms of the duodenum and avoid extensive surgery. Splenectomy is the treatment of choice for localized angiosarcomas but a strict follow-up is mandatory because of the possibility of recurrence. © 2012, Hepatobiliary Pancreat Dis Int
ILOPROST INFUSION ACCELERATES THE RECOVER OF RENAL FUNCTION IN PATIENTS EXPERIENCING IRIRELATED DELAYED GRAFT FUNCTION AFTER KIDNEY TRANSPLANT
No full textDoes portal-superior mesenteric vein invasion still indicate irresectability for pancreatic carcinoma?
No full textPancreatic carcinoma frequently infiltrates the portal vein or the superior mesenteric vein; pancreatectomy combined with portal vein/superior mesenteric vein resection represents a potentially curative treatment in these cases but is still a controversial procedure. After performing a computerized Medline search, 12 series published during the last 8 years were selected, enrolling 399 patients who underwent pancreatectomy combined with portal vein/superior mesenteric vein resection for pancreatic carcinoma. Data were examined for information about indications, operation, adjuvant therapies, histopathology of resected specimens, perioperative results, and survival. Also, previous literature regarding the issue was extensively reviewed. Operative mortality and postoperative complication rates ranged from 0 to 7.7% and 16.7% to 54%, respectively. Median survival varied from 13 to 22 months; 5-year survival rate ranged from 9% to 18%. The current literature suggests that portal vein/superior mesenteric vein resection combined with pancreatectomy is a safe and feasible procedure that increases the number of patients who undergo curative resection and, therefore, provides important survival benefits to selected groups of patients. This procedure should always be considered in case of suspected tumor infiltration of portal/superior mesenteric vein to achieve clear resection margins, in the absence of other contraindications for resection
risultati oncologici a medio-lungo termine nei pazienti trapiantati di fegato per epatocarcinoma dopo l’adozione del sistema allocativo ISOscore presso il Centro Trapianti di Bologna.
No full textSOPRAVVIVENZA DEL GRAFT DOPO TRAPIANTO DI FEGATO NELL’ERA DEI DONATORI A CRITERI ESTESI: EFFETTO COMBINATO DI FIBROSI PORTALE ED ETÀ DEL RICEVENTE
No full textMATCH DONATORE-RICEVENTE NEL TRAPIANTO DI FEGATO: COME MIGLIORARE LA SOPRAVVIVENZA NEI PAZIENTI CON MELD ELEVATO NELL'ERA DEI DONATORI MARGINALI
No full textMODIFICATION OF DROP-OUT RATES AFTER FOUR YEARS FROM ITALIAN SCORE FOR ORGAN ALLOCATION INTRODUCTION AT A SINGLE CENTRE: A COMPETING RISK ANALYSIS.
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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
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