scholarly journals C-KIT Expression in Orbital Cavernous Venous Hemangiomas

Biomolecules ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1199
Author(s):  
Mizhir Atallah ◽  
Natalia Edison ◽  
Esther Levi ◽  
Irit Elmalah ◽  
Daniel Briscoe
Keyword(s):  
Tumor Size ◽  
Medical Center ◽  
Collaborative Study ◽  
Tyrosine Kinase Receptor ◽  
Symptom Duration ◽  
Orbital Apex ◽  
Kit Receptor ◽  
The Mean ◽  
Tumor Pathogenesis

Orbital (slow flow) cavernous venous hemangiomas (OCVH) are the most common benign orbital tumors in adults. The c-KIT is a tyrosine kinase receptor, which is expressed on several types of cells, is thought to play a key role in tumor pathogenesis. The purpose of this study was to evaluate the presence of the receptor c-KIT in OCVH. Our retrospective study examined 16 orbital cavernous venous hemangiomas from 16 cases operated on between 2006–2016 at Emek Medical Center. The mean tumor size was 18.4 mm. Symptoms appeared between 6 months and 22 years before operation. All specimens were analyzed for the c-KIT receptor through immunohistochemistry. The c-KIT was expressed by the endothelium in all 16 preparates. Staining was strong in two cases, moderate in six, and weak in eight cases, with no statistically significant correlation between staining and tumor size (p = 0.69) or the symptom duration (p = 0.15). We conclude that c-KIT may play an important role in the pathogenesis of OCVH. This pilot study is significant in that tumor-targeted therapy such as Imatinib Mesylate and Sunitinib may have a role in treating surgically complicated cases located in the orbital apex. A large multicenter collaborative study is necessary to examine the role of c-KIT in OCVH.

scholarly journals Bleeding during laparoscopic partial nephrectomy: Can a hemostatic matrix help to improve hemostasis?

2016 ◽  
Vol 88 (3) ◽  
pp. 228 ◽  
Author(s):  
Faruk Ozgor ◽  
Abdulmuttalip Simsek ◽  
Ozgu Aydogdu ◽  
Onur Kucuktopcu ◽  
Omer Sarilar ◽  
...  
Keyword(s):  
Partial Nephrectomy ◽  
Tumor Size ◽  
Operation Time ◽  
Demographic Characteristics ◽  
Ischemia Time ◽  
Nephrometry Score ◽  
The Mean ◽  
Group 1

Objectives: To evaluate the possible role of an hemostatic matrix on hemostasis, perioperative outcomes and complications in patients who underwent laparoscopic partial nephrectomy (LPN). Materials and methods: Patients charts were analyzed retrospectively and their demographic characteristics, operative parameters and follow-up results were recorded. Patients were divided into two groups, according to those who used an hemostatic matrix as Group 1 (n = 41) and those who did not used as Group 2 (n = 44). Demographic characteristics of patients, tumor features, operation time, clamping of the renal vessels, ischemia time, suturing of the collecting system, perioperative hemorrhage and complications were evaluated. Histopathological results, surgical margin status, creatinine level and recurrence at the 3rd month of follow up were analyzed. Statistical analyses were performed with SPSS 17.0 and significance was set at p value of < 0.05. Results: The mean RENAL nephrometry score was 5.9 ± 2.0 and the mean tumor size was 35 ± 12 mm. All patients had a single tumor and 44 of them had a tumor in the right kidney. The renal artery was clamped in 79 cases and the mean ischemia time was 20.1 ± 7 minutes. The mean tumor size and the mean RENAL nephrometry score was statistically higher in Group 1 (p: 0.016 and p < 0.001, respectively). Pelvicaliceal repair was more common in Group 1 due to deeper extension of tumors in this group (p: 0.038). In Group 1, less hemorrhage and blood transfusion requirement, with shorter ischemia and operation time was detected. Conclusion: The outcomes of the recent study showed that adjunctive use of an hemostatic matrix improves hemostasis and decreases hemorrhagic complications during LPN. Further prospective studies are required to assess the potential role of an hemostatic matrix in LPN.

Assessment of the Role of Intraoperative Frozen Section in Guiding Surgical Staging for Endometrial Cancer

2016 ◽  
Vol 26 (5) ◽  
pp. 918-923 ◽  
Author(s):  
Xiaoyuan Wang ◽  
Li Li ◽  
Janiel M. Cragun ◽  
Setsuko K. Chambers ◽  
Kenneth D. Hatch ◽  
...  
Keyword(s):  
Risk Factors ◽  
Endometrial Cancer ◽  
Tumor Size ◽  
Frozen Section ◽  
Medical Center ◽  
Myometrial Invasion ◽  
Surgical Staging ◽  
Endometrioid Adenocarcinoma ◽  
Intraoperative Frozen Section

ObjectiveThe aim of this study was to assess the role of intraoperative frozen section (FS) in guiding decision making for surgical staging of endometrioid endometrial cancer (EC).MethodsMedical records were collected retrospectively on 112 patients with endometrioid EC, who underwent total hysterectomy and bilateral salpingo-oophorectomy at the University of Arizona Medical Center from January 1, 2010, to December 31, 2014. Only patients with endometrioid adenocarcinoma, grade 1, less than 50% myometrial invasion, and tumor size less than 2 cm determined by intraoperative FS omitted lymphadenectomy; otherwise, surgical staging was performed with lymph node dissection. The FS results were compared with the permanent paraffin sections (PSs) to assess the diagnostic accuracy.ResultsThe concordance rate of different variables between FS and PS in EC was 100%, 89.3% (100/112), 97.3% (109/112), and 95.5% (107/112), respectively, with respecting to histological subtype, grade, myometrial invasion, and tumor size. Diagnostic accurate rate of combined risk factors deciding surgical staging at the time of FS was 95.5% (107/112), and the discordance rate of all risk factors considered between FS and PS was 4.5%, resulting 3 cases (2.7%) undertreated and 2 cases (1.8%) overtreated.ConclusionsDespite nonideal FS evaluation, intraoperative FS diagnosis for EC is highly reliable by providing guidance for the intraoperative decisions of surgical staging at our institution, and such guidelines may be referenced by the institutions with sufficient gynecologic pathology expertise.

scholarly journals PO 18126 - Comparison of first ray mobility in normal individuals and patients with hallux valgus

2019 ◽  
Vol 13 (Supl 1) ◽  
pp. 25S
Author(s):  
Paulo César de César ◽  
Alexandre Severo do Pinho ◽  
Augusto Campagna Torres
Keyword(s):  
Physical Examination ◽  
Hallux Valgus ◽  
Medical Center ◽  
Mean Difference ◽  
Clinical Test ◽  
Similar Difference ◽  
Normal Individuals ◽  
First Ray ◽  
The Mean

Introduction: The role of first ray sagittal mobility (FRSM) in the etiology and treatment of hallux valgus (HV) remains controversial. The manual clinical test of FRSM performed during the physical examination of HV is completely subjective. Our objective was to compare individuals with and without HV using a previously described manual device validated to evaluate FRSM and to assess the correlation between FRSM and HV severity and between FRSM and the degree of foot flatness. Methods: Thirty-seven feet with HV and 35 control feet were compared using a Eulji Medical Center (EMC)-like manual device. The HV grade was measured using the HV angle (HVA), and the degree of foot flatness was measured using Meary’s angle. Results: FRSM in controls: 6.31 mm; in cases: 8.97 mm, p<0.001, with a difference between controls and cases of 2.66 mm. HVA in controls: 8.75°; in cases: 23.74°, p<0.001. Correlation between FRSM and HVA in controls: r=-0.09, p=0.63; in cases: r=-0.08, p=0.63. Correlation between FRSM and Meary’s angle in controls: r=-0.04, p=0.83; in cases: r=-0.02, p=0.89. The 90th percentile in controls was 8 mm. Conclusion: The individuals with HV had greater FRSM than the controls, and the mean difference was 2.66 mm; a previous study using a Klaue device showed a similar difference of 3.62 mm. There was no correlation between HV severity and FRSM; that is, the more severe cases of HV did not show greater mobility. Therefore, more severe cases will not have a greater likelihood of tarsometatarsal arthrodesis based on the FRSM. There was no correlation between FRSM and foot flatness (Meary’s angle); that is, the FRSM did not increase with foot flatness. The 90th percentile in controls was 8 mm; in other words, 10% of individuals without HV have mobility equal to or greater than 8 mm.

scholarly journals Role of Radiotherapy in Locally Advanced, Fungating, and Inoperable Breast Cancer

2020 ◽  
Vol 6 (01) ◽  
pp. 29-31
Author(s):  
Pramod Kumar Singh ◽  
Jitendra Kumar Verma ◽  
Waseem Raza ◽  
Sanjay Kumar Verma ◽  
Nitin Kumar
Keyword(s):  
Breast Cancer ◽  
Tumor Size ◽  
Group Intervention ◽  
Locally Advanced ◽  
Subjective Response ◽  
Parallel Group ◽  
The Mean ◽  
Single Blind

Abstract Introduction In India, majority of patients are diagnosed with breast cancer in locally advanced stage. Surgery, chemotherapy, and radiotherapy (RT) are the mainstay of treatment for many patients who are not fit for surgery and need local RT. Materials and Methods This was a single-center, nonstratified, single-blind, nonplacebo-controlled parallel group intervention study with imbalanced randomization done at our institute. Adult patients of 30 to 65 years of age with histologically proven carcinoma of breast with biopsy were registered and assessed. Results In total, 30 patients were included in the study and the mean age was 50 years. All the patients received 30 Gy/10 fractions in 2 weeks and the response was assessed after 4 weeks of completion of RT. Twelve patients observed more than 70% reduction in tumor size and good subjective relief, nine patients observed 40% reduction in tumor size, and six patients observed 30% reduction in tumor size. Two patients did not show any response to RT, while one patient did show progress. All patients received chemotherapy before RT and 28 patients received chemotherapy after RT. Conclusion Thus, whether it is 20 Gy in 5 fractions or 30 Gy in 10 fractions is debatable and needs further study of larger group to establish their benefit on each ­other. However, 30 Gy in 10 fractions gives good subjective response to patients and improves the quality of life.

THE ROLE OF COMPUTED TOMOGRAPHY (CT) IN PATIENTS WITH RIGHT ILIAC FOSSA PAIN IN THE EMERGENCY DEPARTMENT.

2020 ◽  
Vol 8 (1) ◽  
pp. 1-9
Keyword(s):  
Ct Scan ◽  
Medical Center ◽  
Iliac Fossa ◽  
Non Invasive ◽  
Dual Source ◽  
Invasive Method ◽  
Right Iliac Fossa Pain ◽  
The Mean ◽  
Contrast Media Administration

Objective To emphasize the accuracy of CT as non-invasive method either to confirm specific diagnosis or suggest an alternative diagnosis for right iliac fossa pain. Material and method A total number of 200 patients who underwent abdomen and pelvic CT, their images were retrospectively reviewed in a period between June 2019 –December 2019 at King Hussein Medical Center. The age of the patients ranges from (14-70 years) with the mean age 42 years. All scans were performed with Siemens definition dual source 64 slice CT scan, abdominal CT scan protocol with or without intravenous (IV) contrast media administration. The results will be analyzed by simple statistical method.

Secondary gliosarcoma: a review of clinical features and pathological diagnosis

2010 ◽  
Vol 112 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Seunggu J. Han ◽  
Isaac Yang ◽  
Tarik Tihan ◽  
Susan M. Chang ◽  
Andrew T. Parsa
Keyword(s):  
Response To Treatment ◽  
Primary Glioblastoma ◽  
Key Word ◽  
Pubmed Search ◽  
Radiation Induced ◽  
Previously Treated ◽  
The Mean ◽  
Tumor Pathogenesis ◽  
Radiographic Presentation

Object Although secondary gliosarcoma after treatment of primary glioblastoma multiforme has been described, little is known of these rare tumors. In this article the authors review the literature on secondary gliosarcoma, with attention to clinical course and pathological features. Methods A PubMed search of the key word intracranial “gliosarcoma” with and without “radiation” or “radiotherapy” in humans was performed. The 204 citations yielded were screened for relevancy to gliosarcomas that occur after treatment of previous intracranial neoplasms. Results A search of the literature yielded 24 relevant articles, combined for a total of only 12 cases of secondary gliosarcoma and 12 cases of radiation-induced gliosarcoma. Of the 12 cases of secondary gliosarcoma, all were previously treated with surgery and radiotherapy (mean dose 50.7 Gy), with a mean survival of 13 months since time of gliosarcoma diagnosis (range 6.9–19.4 months). In the cases of radiation-induced gliosarcoma, the mean dose of previous radiotherapy was 51.3 Gy (median 54 Gy, range 24–60 Gy), and the mean survival since gliosarcoma diagnosis was 6.7 months (median 6 months, range 2–10 months). Conclusions Secondary gliosarcoma and radiation-induced gliosarcoma are exceedingly rare. The literature on secondary gliosarcoma illustrates a more favorable survival than for primary gliosarcoma but remains limited regarding clinical and radiographic presentation, response to treatment, and pathogenesis. The results of the present review also support the notion that secondary gliosarcomas and radiation-induced gliosarcomas are distinct entities, with longer survival and shorter latency of gliosarcoma induction seen in the former. Efforts to elucidate the role of radiotherapy in the induction of gliosarcomas may yield new insights into therapeutic risks of cranial radiation and CNS tumor pathogenesis.

A Collaborative Study Designed to Establish the 4th International Standard for Heparin

1984 ◽  
Vol 52 (02) ◽  
pp. 148-153 ◽  
Author(s):  
D P Thomas ◽  
A D Curtis ◽  
T W Barrowcliffe
Keyword(s):  
Collaborative Study ◽  
International Standard ◽  
Thrombin Inhibition ◽  
Freeze Dried ◽  
Assay Methods ◽  
The Mean ◽  
International Collaborative ◽  
International Collaborative Study

SummaryAn international collaborative study, in which 22 laboratories participated, was carried out to establish a replacement for the International Standard for Heparin. A total of 248 assays were analyzed, including APTT, thrombin inhibition and anti-Xa assays, as well as pharmacopoeial assays. Overall, there was less than 5% difference in the mean potency estimates of the candidate preparations, by all assay methods. The freeze-dried preparation 82/502 demonstrated the closest parallelism by bioassay to the existing standard and was established by WHO as the 4th International Standard for Heparin, with an assigned unitage of 1780 i.u. per ampoule.

Long-term dynamics and destruction of marsh vegetation in the Kolokolkova Bay of the Barents Sea

2012 ◽  
pp. 66-77 ◽  
Author(s):  
I. A. Lavrinenko ◽  
O. V. Lavrinenko ◽  
D. V. Dobrynin
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Barents Sea ◽  
Mean Value ◽  
Marsh Vegetation ◽  
Composition And Structure ◽  
The Mean ◽  
Species Composition And Structure

The satellite images show that the area of marshes in the Kolokolkova bay was notstable during the period from 1973 up to 2011. Until 2010 it varied from 357 to 636 ha. After a severe storm happened on July 24–25, 2010 the total area of marshes was reduced up to 43–50 ha. The mean value of NDVI for studied marshes, reflecting the green biomass, varied from 0.13 to 0.32 before the storm in 2010, after the storm the NDVI decreased to 0.10, in 2011 — 0.03. A comparative analysis of species composition and structure of plant communities described in 2002 and 2011, allowed to evaluate the vegetation changes of marshes of the different topographic levels. They are fol­lowing: a total destruction of plant communities of the ass. Puccinellietum phryganodis and ass. Caricetum subspathaceae on low and middle marches; increasing role of halophytic species in plant communities of the ass. Caricetum glareosae vic. Calamagrostis deschampsioides subass. typicum on middle marches; some changes in species composition and structure of plant communities of the ass. Caricetum glareosae vic. Calamagrostis deschampsioides subass. festucetosum rubrae on high marches and ass. Parnassio palustris–Salicetum reptantis in transition zone between marches and tundra without changes of their syntaxonomy; a death of moss cover in plant communities of the ass. Caricetum mackenziei var. Warnstorfia exannulata on brackish coastal bogs. The possible reasons of dramatic vegetation dynamics are discussed. The dating of the storm makes it possible to observe the directions and rates of the succession of marches vegetation.

Seasonal trends in the stable isotopic composition of snow and meltwater runoff in a subarctic catchment at Okstindan, Norway

2004 ◽  
Vol 35 (2) ◽  
pp. 119-137 ◽  
Author(s):  
S.D. Gurney ◽  
D.S.L. Lawrence
Keyword(s):  
Isotopic Composition ◽  
Mean Value ◽  
Mean Values ◽  
Stable Isotopic Composition ◽  
Meltwater Runoff ◽  
Stable Isotopic ◽  
The Mean ◽  
The Difference ◽  
Δ18o And Δd

Seasonal variations in the stable isotopic composition of snow and meltwater were investigated in a sub-arctic, mountainous, but non-glacial, catchment at Okstindan in northern Norway based on analyses of δ18O and δD. Samples were collected during four field periods (August 1998; April 1999; June 1999 and August 1999) at three sites lying on an altitudinal transect (740–970 m a.s.l.). Snowpack data display an increase in the mean values of δ18O (increasing from a mean value of −13.51 to −11.49‰ between April and August), as well as a decrease in variability through the melt period. Comparison with a regional meteoric water line indicates that the slope of the δ18O–δD line for the snowpacks decreases over the same period, dropping from 7.49 to approximately 6.2.This change points to the role of evaporation in snowpack ablation and is confirmed by the vertical profile of deuterium excess. Snowpack seepage data, although limited, also suggest reduced values of δD, as might be associated with local evaporation during meltwater generation. In general, meltwaters were depleted in δ18O relative to the source snowpack at the peak of the melt (June), but later in the year (August) the difference between the two was not statistically significant. The diurnal pattern of isotopic composition indicates that the most depleted meltwaters coincide with the peak in temperature and, hence, meltwater production.

scholarly journals Forensic Investigation of Four Monitored Green Infrastructure Inlets

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1787
Author(s):  
Leena J. Shevade ◽  
Franco A. Montalto
Keyword(s):  
Measurement Uncertainty ◽  
Green Infrastructure ◽  
Stormwater Management ◽  
Catchment Area ◽  
Low Flow ◽  
Inflow Rate ◽  
Forensic Investigation ◽  
Flow Conditions ◽  
The Mean

Green infrastructure (GI) is viewed as a sustainable approach to stormwater management that is being rapidly implemented, outpacing the ability of researchers to compare the effectiveness of alternate design configurations. This paper investigated inflow data collected at four GI inlets. The performance of these four GI inlets, all of which were engineered with the same inlet lengths and shapes, was evaluated through field monitoring. A forensic interpretation of the observed inlet performance was conducted using conclusions regarding the role of inlet clogging and inflow rate as described in the previously published work. The mean inlet efficiency (meanPE), which represents the percentage of tributary area runoff that enters the inlet was 65% for the Nashville inlet, while at Happyland the NW inlet averaged 30%, the SW inlet 25%, and the SE inlet 10%, considering all recorded events during the monitoring periods. The analysis suggests that inlet clogging was the main reason for lower inlet efficiency at the SW and NW inlets, while for the SE inlet, performance was compromised by a reverse cross slope of the street. Spatial variability of rainfall, measurement uncertainty, uncertain tributary catchment area, and inlet depression characteristics are also correlated with inlet PE. The research suggests that placement of monitoring sensors should consider low flow conditions and a strategy to measure them. Additional research on the role of various maintenance protocols in inlet hydraulics is recommended.

Sign in / Sign up

Export Citation Format

Share Document