CA : A Cancer Journal for Clinicians

Objective To address terminology and other issues related to thyroid fine-needle aspiration (FNA), the National Cancer Institute (NCI) hosted The NCI Thyroid FNA State of the Science Conference. The conclusions regarding terminology and morphologic criteria from the NCI meeting led to the Bethesda Thyroid Atlas Project and form the framework for the Bethesda System for Reporting Thyroid Cytopathology. Design Participants of the Atlas Project were selected from among the committee members of the NCI FNA State of the Science Conference and other participants at the live conference. The terminology framework was based on a literature search of English language publications dating back to 1995 using PubMed as the search engine; online forum discussions ( http://thyroidfna.cancer.gov/forums/default.aspx ); and formal interdisciplinary discussions held on October 22 and 23, 2007, in Bethesda, MD. Main outcome For clarity of communication, the Bethesda System for Reporting Thyroid Cytopathology recommends that each report begin with one of the six general diagnostic categories. Each of the categories has an implied cancer risk that links it to an appropriate clinical management guideline. Conclusions The project participants hope that the adoption of this framework will facilitate communication among cytopathologists, endocrinologists, surgeons, and radiologists; facilitate cytologic-histologic correlation for thyroid diseases; facilitate research into the understanding of thyroid diseases; and allow easy and reliable sharing of data from different laboratories for national and international collaborative studies.

The Bethesda System for Reporting Thyroid Cytopathology.

Summary Background Compared with open resection, laparoscopic resection of rectal cancers is associated with improved short-term outcomes, but high-level evidence showing similar long-term outcomes is scarce. We aimed to compare survival outcomes of laparoscopic surgery with open surgery for patients with mid-rectal or low-rectal cancer. Methods The Comparison of Open versus laparoscopic surgery for mid or low REctal cancer After Neoadjuvant chemoradiotherapy (COREAN) trial was an open-label, non-inferiority, randomised controlled trial done between April 4, 2006, and Aug 26, 2009, at three centres in Korea. Patients (aged 18–80 years) with cT3N0–2M0 mid-rectal or low-rectal cancer who had received preoperative chemoradiotherapy were randomly assigned (1:1) to receive either open or laparoscopic surgery. Randomisation was stratified by sex and preoperative chemotherapy regimen. Investigators were masked to the randomisation sequence; patients and clinicians were not masked to the treatment assignments. The primary endpoint was 3 year disease-free survival, with a non-inferiority margin of 15%. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT00470951. Findings We randomly assigned 340 patients to receive either open surgery (n=170) or laparoscopic surgery (n=170). 3 year disease-free survival was 72·5% (95% CI 65·0–78·6) for the open surgery group and 79·2% (72·3–84·6) for the laparoscopic surgery group, with a difference that was lower than the prespecified non-inferiority margin (–6·7%, 95% CI −15·8 to 2·4; p Interpretation Our results show that laparoscopic resection for locally advanced rectal cancer after preoperative chemoradiotherapy provides similar outcomes for disease-free survival as open resection, thus justifying its use. Funding National Cancer Center, South Korea.

https://www.thelancet.com/pdfs/journals/lanonc/PIIS1470-2045(14)70205-0.pdf

Open versus laparoscopic surgery for mid-rectal or low-rectal cancer after neoadjuvant chemoradiotherapy (COREAN trial): survival outcomes of an open-label, non-inferiority, randomised controlled trial.

Objective:To determine the safety of laparoscopy-assisted distal gastrectomy (LADG) compared with open distal gastrectomy (ODG) in patients with clinical stage I gastric cancer in Korea.Background:There is still a lack of large-scale, multicenter randomized trials regarding the safety of LADG.Method

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Decreased Morbidity of Laparoscopic Distal Gastrectomy Compared With Open Distal Gastrectomy for Stage I Gastric Cancer: Short-term Outcomes From a Multicenter Randomized Controlled Trial (KLASS-01).

Thank you for downloading the foundations of differential geometry. As you may know, people have look numerous times for their chosen books like this the foundations of differential geometry, but end up in malicious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their computer. the foundations of differential geometry is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the the foundations of differential geometry is universally compatible with any devices to read.

The Foundations Of Differential Geometry

In this paper we first introduce the full expression of the curvature tensor of a real hypersurface M in complex hyperbolic two-plane Grassmannians SU 2 , m / S ( U 2 ⋅ U m ) , m ≥ 2 from the equation of Gauss. Next we derive a new formula for the Ricci tensor S of M in SU 2 , m / S ( U 2 ⋅ U m ) . Finally we give a complete classification of Hopf hypersurfaces in complex hyperbolic two-plane Grassmannians SU 2 , m / S ( U 2 ⋅ U m ) with Reeb invariant Ricci tensor, that is, L ξ S = 0 . Each can be described as a tube over a totally geodesic SU 2 , m − 1 / S ( U 2 ⋅ U m − 1 ) in SU 2 , m / S ( U 2 ⋅ U m ) or a horosphere whose center at infinity is singular.

Real hypersurfaces in complex hyperbolic two-plane Grassmannians with Reeb invariant Ricci tensor☆

It is known that submanifolds in Kaehler manifolds have many kinds of connections Among them, we consider two connections, that is, Levi-Civita and Tanaka–Webster connections for real hypersurfaces in complex two-plane Grassmannians $G_2({\mathbb C}^{m+2})$ When they are equal to each other, we give some characterizations in $G_2({\mathbb C}^{m+2})$

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Levi-Civita and generalized Tanaka–Webster covariant derivatives for real hypersurfaces in complex two-plane Grassmannians

In this paper we give a sufficient condition for a complete, simply connected, and strict nearly Kahler manifold of dimension 6 to be a homogeneous nearly Kahler manifold. This result was announced in a previous paper by the first author.

On $6$-Dimensional Nearly Kähler Manifolds

In this paper we give a complete classification of real hypersurfaces in complex hyperbolic space on which the sectional curvature of planes is constant.

Classification of Real Hypersurfaces in Complex Hyperbolic Space in Terms of Constant $\phi-holomorphic$ Sectional Curvatures

Lee, Kim and Suh (2012) gave a characterization for real hypersurfaces M of Type (A) in complex two plane Grassmannians G 2(ℂ m+2) with a commuting condition between the shape operator A and the structure tensors φ and φ 1 for M in G 2(ℂ m+2). Motivated by this geometrical notion, in this paper we consider a new commuting condition in relation to the shape operator A and a new operator φφ 1 induced by two structure tensors φ and φ 1. That is, this commuting shape operator is given by φφ 1 A = A φφ 1. Using this condition, we prove that M is locally congruent to a tube of radius r over a totally geodesic G 2(ℂ m+1) in G 2(ℂ m+2).

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Young Jin Suh

Papers

Real hypersurfaces in complex hyperbolic two-plane Grassmannians with Reeb invariant Ricci tensor☆

Levi-Civita and generalized Tanaka–Webster covariant derivatives for real hypersurfaces in complex two-plane Grassmannians

On $6$-Dimensional Nearly Kähler Manifolds

Classification of Real Hypersurfaces in Complex Hyperbolic Space in Terms of Constant $\phi-holomorphic$ Sectional Curvatures

Real hypersurfaces in complex two-plane Grassmannians with certain commuting condition II