Search results for "TUMOR"

Epidemiology of pediatric tumors of the central nervous system.

2009

Tumors of the CNS are the second most frequent malignancy in childhood and the most common of the solid tumors. An increase in CNS tumor rates during the past decades has been observed in a number of countries. One possibility is that improvements in diagnostics of CNS tumors contributed to the increasing trend. Another concern is that changes in environmental exposures may be responsible for the increasing incidence rates and a number of epidemiologic studies investigated factors like exposure to ionizing radiation, electromagnetic fields, or pesticides. In addition, prenatal exposures, for example from maternal diet, or the role of infectious agents were of particular interest. In this re…

Surgical management of ameloblastoma. Review of literature

2019

Background Ameloblastoma is an odontogenic tumor that represents 1% of all tumors in the oral cavity and it is clinically classified in three types. Currently, solid and multi-cystic are considered locally aggressive, with high recurrence rates with conservative treatment. Material and methods Objective of the present review is to assess whether the surgical treatment should be conservative or radical. English articles published between 2009-2014, with available summary and in humans were included. Results 241 articles were found, 188 were excluded because analyzing. 53 articles were analyzed and finally 14 were selected for this review. Conclusions The optimal surgical treatment of amelobl…

Prognostic Value of Radiomics Signature By Diagnostic 18F-FDG PET/CT Analysis in Aggressive Non-Hodgkin's Lymphoma

2018

Abstract BACKGROUND Although the overall prognosis of patients with aggressive non-Hodgkin's lymphoma (NHL) has improved, nearly a third of patients will have refractory disease or relapse. Identification of these high-risk patients using traditional prognostic factors is limited. PET is the recommended imaging modality for the staging of FDG-avid lymphoma but the value of a comprehensive new imaging biomarkers analysis applied to PET for the prediction of patients outcome has still not been deeply investigated. New metrics estimating the overall tumor burden such as metabolic tumor volume (MTV) and those that may capture intratumoral biological heterogeneity such as total lesion glycolysis…

P611 Outcome in ulcerative colitis after switch from subcutaneous anti-TNF to intravenous anti-TNF: A multicentre study

2018

Successful Extensive Multiorgan Resection of Malignant Duodenal Tumor: A Case Report

2020

Summary Duodenal adenocarcinoma is one of the rarest tumours of all gastrointestinal malignancies. Due to rarity and late symptoms, duodenal cancers are diagnosed in late stage, but overall survival rate is high. We present a case of locally advanced duodenal adenocarcinoma with successful surgical treatment including multiorgan resection.

Hochauflösende Dünnschicht-CT zum präoperativen Staging beim Rektumtumor: Vergleich mit der endo-luminalen Sonographie und der Histologie

1990

Rectal carcinomas are amongst the most common malignant tumours. The aim of this work was to determine whether high resolution CT with thin sections (1 mm) can provide satisfactory delineation of perirectal tumour infiltration. Correct determination of local tumour spread was possible in four out of nine patients and distinction between those tumours confined to the rectal wall and those infiltrating the perirectal tissues was possible in four out of eight patients.

Next-generation three-dimensional modelling software for personalized surgery decision-making in perihilar cholangiocarcinoma: multicentre study

2021

Next-generation three-dimensional modelling software for personalized surgery allows spatially accurate depiction of the hepatic and vasculature anatomy based on the complexity and individual variation in each patient, and could facilitate decision-making about preoperative strategy in perihilar cholangiocarcinoma.

Is Nephron Sparing Surgery Justified in Wilms Tumor With Beckwith-Wiedemann Syndrome or Isolated Hemihypertrophy?

2016

Background Patients with Beckwith–Wiedemann syndrome (BWS) or isolated hemihypertrophy (HH) treated for a Wilms tumor (WT) carry an increased risk of developing metachronous lesion. There are no guidelines on precise indications for nephron sparing surgery (NSS) in unilateral WT (UWT). The objective of this retrospective study was to delineate the indications of NSS in patients with BWS/HH treated for WT and to evaluate their outcome. Procedure All cases of BWS/HH treated for a WT according to SIOP protocols from 1980 to 2013 were reviewed. Patients were divided into two groups (G): isolated UWT (G1) and bilateral lesions (G2) with two subgroups: bilateral tumors suspected of malignancy (G2…

Cysts and tumors of the jaws treated by marsupialization: A description of 4 clinical cases

2019

Since the 4th edition of the World Health Organization's Classification of Head and Neck Tumours was published in January of 2017, the keratocystic odontogenic tumor is back into the cyst category as odontogenic keratocyst (OKC). Depending on the size of the cyst, its location and the patients' age, several treatment options are available: curettage, enucleation, radical treatment and marsupialization. The marsupialization is a conservative technique used in early tumor stages, as curative treatment for the odontogenic cyst. Despite its disadvantages and controversies, the marsupialization remains an interesting therapeutic choice in the case of large cysts, or in very young or old patients…

Organerhaltende Chirurgie des Nierenzellkarzinoms: Operative Technik, Ergebnisse, Komplikationen

2008

Abstract Operative method, course and complications were analysed retrospectively in 120 patients in whom a kidney tumour had been resected without nephrectomy. In 49 patients (18 women and 31 men, mean age 59 [38-77] years; 45 renal-cell carcinomas, 4 benign renal tumours) there was an "imperative indication" for an organ-preserving operation, because nephrectomy would have made dialysis obligatory. In 74 patients with a healthy contralateral kidney (25 women, 49 men, mean age 55 [31-74] years; 61 renal-cell carcinomas, 13 benign tumours) the tumour was enucleated by choice; 55 of these patients were symptom-free. 36 of 49 patients with an imperative indication are without sign of tumour p…