Jong Lyul Lee

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The aim of the present study was to identify the risk factors and patient characteristics associated with permanent stomas after sphincter-saving resection for rectal cancer. Between 2000 and 2007, 2,362 patients underwent sphincter-saving surgery [low anterior resection or ultra-low anterior resection (uLAR)] for rectal cancer. These patients were divided(More)
Transanal minimally invasive surgery (TAMIS) has emerged as an alternative to transanal endoscopic microsurgery. We assessed the feasibility of TAMIS for lesions located in the mid rectum. From July 2010 to October 2011, 16 consecutive patients with rectal pathology underwent TAMIS. After a single-incision laparoscopic surgery port was introduced into the(More)
PURPOSE A diverting stoma is known to reduce the consequences of distal anastomotic failure following colorectal surgery. The aim of this study was to evaluate the efficacy of a diverting stoma after an ultra-low anterior resection (uLAR) for rectal cancer. METHODS Between 2000 and 2007, 836 patients who underwent an uLAR were divided into two groups,(More)
BACKGROUND Neuroendocrine carcinomas (NECs) arising in the large intestine are rare neoplasms with highly aggressive behavior. The aim of the study was to compare the 2000 and 2010 World Health Organization (WHO) classification of these colorectal NECs. METHODS We conducted a retrospective study of patients diagnosed with colorectal NECs according to the(More)
Total mesorectal excision (TME) and preoperative chemoradiation therapy (PCRT) for rectal cancer are used sequentially in our center. The aim of this study was to evaluate survival of patients with stage II/III rectal cancer chronologically and to determine whether therapeutic advances associated with TME and PCRT have improved patient survival. A(More)
Patients with stage I colorectal cancer (CRC) rarely experience recurrences; therefore, few risk factors for recurrence are known. This study was designed to evaluate oncologic outcomes of patients with stage I CRC and to identify risk factors for recurrence after curative surgery. A retrospective cohort of 860 patients from a single institution who(More)
Precise understanding of recurrence patterns permits efficient surveillance and effective treatment strategies. The aim of this study was to evaluate recurrence patterns after treatment of rectal cancers, specifically with respect to tumor location and chemoradiotherapy (CRT). A single-institution, retrospective cohort of 2,086 consecutive rectal cancer(More)
According to the 2010 World Health Organization classification, all gastrointestinal neuroendocrine tumors (NETs) are classified as malignant except for L-cell-type (glucagon-like peptide [GLP] and peptide YY [PYY]-producing) NETs. However, L-cell immunophenotype in rectal NETs has not been widely studied previously. Immunohistochemical labeling of L-cell(More)
This retrospective study compared the recurrence-free survival (RFS) and local recurrence rates of patients who received preoperative chemoradiotherapy (PCRT) for cT3N0 vs. those who did not. We analyzed the records of 593 patients with transrectal ultrasound (TUS) or magnetic resonance image (MRI)-staged cT3N0 mid and low locally advanced rectal cancer,(More)
PURPOSE Selecting the best surgical approach for treating complete rectal prolapse involves comparing the operative and functional outcomes of the procedures. The aims of this study were to evaluate and compare the operative and functional outcomes of abdominal and perineal surgical procedures for patients with complete rectal prolapse. METHODS A(More)