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S-94 A comparison of endoscopic treatments for rectal carcinoid tumors
( Sang Myung Yeo ),( Jae Kwang Lee ),( Hyun Soo Kim ),( Chang Keun Park ),( Jae Kwon Jung ),( Dae Jin Kim ),( Ji Hun Jang ) 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1
Background and Aims: Carcinoid tumor are slow growing neoplasms developing from enterochromaffin cells. The incidence of rectal carcinoid tumors has increased markedly and a recent study reported that the rectum is the most common site of carcinoid tumor in the gastrointestinal tract. This study aimed to compare the safety and efficacy of endoscopic mucosal resection (EMR) with endoscopic submucosal dissection (ESD) for rectal carcinoid tumor. Patients and Methods: Between January 2004 to December 2014, 153 patients undewent either EMR (n=85) or ESD (n=68) for rectal carcinoid tumors. The characteristics of the patients and tumors, the rate of complete resection and the rate of complications were analyzed retrospectively. Results: Baseline characteristics showed no significant difference between the 2 groups. Data on clinical outcomes also showed no significant difference between the 2 groups except the procedure time. The procedure time in EMR group was significantly shorter than in ESD group. Conclusions: Our study shows that the treatment of rectal carcinoid tumor with ESD is not superior to EMR.
Yeo, Seung-Gu,Kim, Dae Yong,Kim, Tae Hyun,Chang, Hee Jin,Oh, Jae Hwan,Park, Won,Choi, Doo Ho,Nam, Heerim,Kim, Jun-Sang,Cho, Moon-June,Kim, Jong Hoon,Park, Jin-hong,Kang, Min Kyu,Koom, Woong Sub,Kim, J Lippincott Williams Wilkins, Inc. 2010 Annals of surgery Vol.252 No.6
OBJECTIVE:: To investigate long-term outcomes of locally advanced rectal cancer (LARC) patients with postchemoradiotherapy (post-CRT) pathologic complete response of primary tumor (ypT0) and determine prognostic significance of post-CRT pathologic nodal (ypN) status. BACKGROUND:: LARC patients with post-CRT pathologic complete response were suggested to have favorable long-term outcomes, but prognostic significance of ypN status has never been specifically defined in ypT0 patients. METHODS:: The Korean Radiation Oncology Group collected clinical data for 333 LARC patients with ypT0 following preoperative CRT and curative radical resections between 1993 and 2007. Sphincter preservation surgery and abdominoperineal resection were performed in 283 (85.0%) and 50 (15.0%) patients, respectively. Postoperative chemotherapy was given to 285 (85.6%) patients. Survival was estimated by the Kaplan-Meier method, and the Cox proportional hazard model was used in multivariate analyses. RESULTS:: After median follow-up of 43 (range = 14–172) months, 5-year disease-free survival (DFS) was 84.6% and overall survival (OS) was 92.8%. The ypN status was ypT0N0 in 304 (91.3%), ypT0N1 in 22 (6.6%), and ypT0N2 in 7 (2.1%) patients. The ypN status was the most relevant independent prognostic factor for both DFS and OS in ypT0 patients. The 5-year DFS and OS was 88.5% and 94.8% in ypT0N0 patients, and 45.2% and 72.8% in ypT0N+ patients (both, P < 0.001). CONCLUSIONS:: LARC patients achieving ypT0N0 after preoperative CRT had favorable long-term outcomes, whereas positive ypN status had a poor prognosis even after total regression of primary tumor.
Sung Min Kim,Eun Jung Yoon,Min Sang Kim,Ming Li,Chang Woo Oh,Sung Young Lee,Kyoung Hwan Yeo,Sung Hwan Kim,Dong Uk Choe,Sung Dae Suk,Dong-Won Kim,Donggun Park 대한전자공학회 2006 Journal of semiconductor technology and science Vol.6 No.1
We demonstrate highly manufacturable Multi-channel Field Effect Transistor (McFET) on bulk Si wafer. McFET shows excellent transistor characteristics, such as 5~6 times higher drive current than planar MOSFET, ideal subthreshold swing, low drain induced barrier lowering (DIBL) without pocket implantation and negligible body bias dependency, maintaining the same source/drain resistance as that of a planar transistor due to the unique feature of McFET. And suitable threshold voltage (VT) for SRAM operation and high static noise margin (SNM) are achieved by using TiN metal gate electrode.
Gastric Angiolipoma Resected with Endoscopic Submucosal Dissection
Sang Myung Yeo,Jae Kwang Lee,Hyun Soo Kim,Chang Geun Park,Jae Kwon Jung,Dae Jin Kim,Yun Jin Chung,Han Jun Ryu 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.3
Angiolipoma is a benign fatty neoplasm that has components of proliferating blood vessels. These types of lesions commonly occurin the subcutaneous tissue of the limbs and trunk. Angiolipoma in the gastrointestinal tract is extremely rare, and the final diagnosisgenerally depends on histological examination of the excised biopsy. In most previously reported cases, the lesions were diagnosedand treated with surgical management. In this study, we report a case of gastric angiolipoma of approximately 4 cm in size that wasdiagnosed and treated with endoscopic submucosal dissection.