Seong Hyeon Yun

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Anastomosis leakage is a major complication of rectal surgery. The aim of this study was to identify risk factors for anastomotic leakage after low anterior resection (LAR) in rectal cancer patients and study its impact on long-term prognosis and disease-free survival and overall survival in rectal cancer patients. Consecutive patients who underwent rectal(More)
BACKGROUND The most reliable prognostic factor in colon cancer is the TNM classification. The objective of this study was to assess and compare the prognostic role of tumor-infiltrating lymphocytes (TILs) in stage II colon cancer. METHODS Immunohistochemistry was used to assess the density of TILs that were positive for cluster of differentiation 3 (CD3)(More)
Because palpating colonic tumors during laparoscopy is impossible, the precise location of a tumor must be identified before operation. The aim of this study was to evaluate the accuracy of various diagnostic methods that are used to localize colorectal tumors and to propose an adequate localization protocol for laparoscopic colorectal surgery. A total of(More)
The purpose of this study is to evaluate the “mushroom cap” sign on T2-weighted MR imaging in patients with submucosal tumors in the rectosigmoid colon. From January 2001 to August 2009, 12 patients with four different diseases presenting or mimicking submucosal tumors in the rectosigmoid colon underwent colonic resection. All patients with deep(More)
Approximately 20% of patients with colorectal cancer are initially diagnosed with stage IV. The majority has non-curative metastases, and their chances of survival are pitiful. This study evaluated the prognostic factors of survival and the access to the effective treatment in accordance with patients. We retrospectively analyzed 503 patients for(More)
Performing a restaging work-up with magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG PET/CT) can provide information about the effects that are related to preoperative concurrent chemoradiotherapy (CCRT). The purpose of the present study was to investigate the accuracy of MRI and 18F-FDG(More)
BACKGROUND The role of adjuvant chemotherapy for patients with rectal cancer is controversial, especially when used after preoperative chemoradiotherapy. Fluoropyrimidine-based adjuvant chemotherapy, including fluorouracil and leucovorin, has been widely used; however, the addition of oxaliplatin to fluorouracil and leucovorin (FOLFOX), a standard adjuvant(More)
BACKGROUND The aim of this study was to evaluate the clinicopathologic features and prognosis of signet ring cell (SRC) carcinoma and compare them with those of mucinous and poorly differentiated adenocarcinomas of the colorectum. METHODS The clinicopathologic data of 35 patients with primary SRC carcinoma were reviewed and compared with the data from 294(More)
BACKGROUND It was investigated whether a very low target pressure could be achieved by modification of deep sclerectomy without losing the advantages of non penetrating surgery in comparison to conventional filtration surgery. PATIENTS AND METHODS A total of 22 eyes from 22 patients with advanced open angle glaucoma were randomly assigned to receive a(More)
PURPOSE Physicians and oncology nurses must continue to update their knowledge on treatment and treatment-related side effects, while searching for effective methods to prevent or manage side effects. The objective of our study was to describe the incidence and response to treatment of the hand-foot syndrome (HFS) and the compliance with treatment of(More)