Sung-Uhn Baek

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The present study was undertaken to clarify the clinical and pathological features of multiple primary cancers, especially those at extracolonic sites, in patients with colorectal cancers. We reviewed the records of 2,176 patients who underwent surgery for colorectal cancers in our institute from January 1997 to December 2006. A synchronous multiple primary(More)
Primary isolated extramedullary plasmacytoma is a rare tumor. Although it commonly involves nasopharynx or upper respiratory tract, only 10% of cases involves the gastrointestinal tract. Stomach and small intestine are the most commonly involved sites in the gastrointestinal tract. Primary isolated extramedullary plasmacytoma of colon is extremely rare. We(More)
Mesenteric cysts are rare intra-abdominal tumors. Mesenteric cysts are usually asymptomatic and are incidentally detected during physical or radiological examination. Although uncommon, complications such as infection, bleeding, torsion, rupture and intestinal obstruction cause an acute abdomen. Spontaneous infection is a very rare complication. We present(More)
AIMS Recently, BRAF mutation testing has been introduced as a marker in differentiating Lynch syndrome from sporadic colorectal cancers or in predicting colorectal cancers with worse prognosis. Individuals with hereditary predisposition to cancer development are at an increased risk of developing multiple primary cancers. The purpose of this study is to(More)
Sigmoid volvulus is one of the three most common causes of acute colonic obstruction. Predisposing factors include chronic constipation, adhesion from a prior abdominal surgery, and megacolon. However, concomitant presentation of volvulus of the sigmoid colon and rectal cancer is extremely rare. We report a case of a 50-year-old woman with coexisting(More)
AIMS The purpose of this study was to evaluate the technical feasibility, safety and oncological outcomes of laparoscopic resection for middle and low rectal cancers. MATERIALS AND METHODS From January 2004 to December 2011, review of prospectively collected database revealed a series of 97 laparoscopic resections for middle and low rectal cancer within(More)
Common causes of lower gastrointestinal bleeding include diverticular disease, vascular disease, inflammatory bowel disease, neoplasms, and hemorrhoids. Lower gastrointestinal bleeding of appendiceal origin is extremely rare. We report a case of lower gastrointestinal bleeding due to angiodysplasia of the appendix. A 72-year-old man presented with(More)
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