Search results for "grading"
showing 10 items of 282 documents
Peri-Tumoral Inflammatory Cell Infiltration in OSCC: A Reliable Marker of Local Recurrence and Prognosis? An Investigation Using Artificial Neural Ne…
2011
The presence of inflammatory reaction in peri-tumoural connective tissue is generally considered as a defense mechanism against cancer, but inflammation tissue in malignant transformation and early steps of oncogenesis has been recently proven to play a supporting and aggravating role in some carcinomas. Aims of this retrospective study were to evaluate in OSCCs the independent association of peri-tumoral inflammatory infiltrate (PTI) with local recurrence (LR) or survival outcome, and to verify whether PTI can be considered a marker of prognosis. Data from 211 cases of OSCC, only surgically treated between 1990 and 2000, were collected and retrospectively analyzed for PTI and the event LR…
Antibody microarray analysis of the serum proteome in primary breast cancer patients
2011
Noninvasive biomarkers are urgently needed for detecting breast cancer as early as possible since the risk of recurrence, morbidity, and mortality is closely related to disease stage at the time of primary surgery. There are currently no such biomarkers in clinical use as a diagnostic tool. Proteomic analysis of protein expression patterns in body fluids has potential for use in identifying biomarkers of breast cancer. The aim of this study was to compare protein expression levels in the sera of primary breast cancer patients and healthy controls. An antibody microarray tool with 23 antibodies immobilized on nitrocellulose slides was used to determine the levels of acute phase proteins, int…
Assessment of "grading" with Ki-67 and c-kit immunohistochemical expressions may be a helpful tool in management of patients with flat epithelial aty…
2009
It is essential to reach a better understanding of "flat epithelial atypia/columnar cell lesions" (FEA/CCLs) in breast core biopsies. Our aim was to explore their biological nature, in order to predict the likelihood of an upgrade to carcinoma. "Cytological grading" has been specially focused, in view of its possible utility in the choice of management. One hundred thirty of a total of 900 cases core needle (CN)/vacuum-assisted biopsies (VABs), with diagnoses of "hyperplasia" and "atypia" were retrospectively re-evaluated. Pathological findings of further excision biopsies (FEBs) performed in 40/75 patients with follow-up were compared with the previous diagnoses. In all cases, both Ki-67 a…
Imunohistochemical Demonstration of Carcinoembryonic Antigen (CEA) in 120 Mammary Carcinomas and its Correlation with Tumor Type, Grading, Staging Pl…
1985
Antisera to CEA were used for the immunohistochemical localization and quantification of this antigen in 120 Bouin-fixed, paraffin embedded mammary carcinomas. These results were compared to tumor type, grading, staging, biochemical receptor status, cytosolic CEA-levels of the same tumors, and preoperative plasma CEA-levels. Mammary carcinomas were usually characterized by a low percentage of CEA-positive tumor cells: 50.9% of the cases contained more than 5% CEA-positive tumor cells and were therefore defined as being CEA-histopositive in this study. A relation could be shown between CEA-histopositivity and the histologic tumor type. The majority of invasive lobular carcinomas, tubular, an…
Vaginal-assisted laparoscopic radical hysterectomy: rationale, technique, results.
2012
The authors conclude that vaginal-assisted laparoscopic radical hysterectomy is an oncologic viable alternative to abdominal radical hysterectomy, laparoscopic-assisted radical vaginal hysterectomy, totally laparoscopic radical hysterectomy, and robotic radical hysterectomy.
Assessment of the implantation of day-2 human embryos by morphometric nonsubjective parameters
2014
Objective: To demonstrate the usefulness of image analysis in designing objective embryonic morphometric variables. Design: Retrospective study of 214 top-quality day-2 embryo photographs from 50 double-embryo transfers resulting in no pregnancy (group 0) and 57 resulting in twin pregnancy (group 1). Setting: Human reproduction unit. Patient(s): Study of 107 in vitro fertilization intracytoplasmic sperm injection (IVF ICSI) cycles in women age<36 years with doubleembryo transfer of top-quality embryos. Only the first cycle of IVF ICSI was included. Intervention(s): Standard IVF ICSI protocols. Main Outcome Measure(s): The embryo photographs were analyzed using the ImageJ program. The effect…
Minilaparoscopic aortic lymphadenectomy.
2015
Abstract Study Objective To show the feasibility of performing aortic lymphadenectomy with 3-mm instruments in gynecologic malignancies. Patient A 43-year-old, multiparous patient with serous ovarian cancer grading 2, Federation Internationale de Gynecologie et d'Obstetrique stage IC (intraoperative spillage). Intervention The patient was accidentally diagnosed with ovarian cancer after a right adnexectomy performed for an ovarian cyst. Once referred to our center, a delayed surgical staging was planned including total hysterectomy, left adnexectomy, aortic and pelvic lymphadenectomy, peritoneal biopsies, and total omentectomy. Minilaparoscopy was believed to be feasible to achieve it. Meas…
Novel preoperative predictive score to evaluate lymphovascular space involvement in endometrial cancer: an aid to the sentinel lymph node algorithm.
2020
IntroductionSentinel lymph node (SLN) dissection has been recognized as a valid tool for staging in patients with endometrial cancer. Several factors are predictors of recurrence and survival in endometrial cancer, including positive lymphovascular space invasion. The aim of this study is to formulate a pre-operative score that, in the event of no-SLN identification, may give an estimate of the true probability of lymphovascular space invasion and guide management.MethodologyThis was a multi-institutional retrospective study conducted from January 2007 to December 2017. We included all patients with any grade endometrial tumor with a complete pathological description of the surgical specime…
Computing the ℤ2-Cocharacter of 3 × 3 Matrices of Odd Degree
2013
Let F be a field of characteristic 0 and A = M 2, 1(F) the algebra of 3 × 3 matrices over F endowed with the only non trivial ℤ2-grading. Aver'yanov in [1] determined a set of generators for the T 2-ideal of graded identities of A. Here we study the identities in variables of homogeneous degree 1 via the representation theory of the symmetric group, and we determine the decomposition of the corresponding character into irreducibles.
Isolation and characterization of hydrocarbonoclastic bacteria from Algerian coast
2017
Backgrounds The contamination of marine environments by hydrocarbons represents a global concern with consequences on ecosystems and human health. The removal of HC by physical and/or chemical methods is expensive and disrespectful of the environment. The use of HC degrading bacteria is a good alternative for environmental remediation (bioremediation). Objectives The Algerian coastline is exposed to several types of pollutions, including hydrocarbons. The aim was to explore the bioremediation potential of its contaminated harbors for the first time. Methods To identify the hydrocarbon degrading bacteria seawater samples were collected in Sidi fredj harbor (Algeria) and used to enrichment cu…