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Background: Colonic lymphoma is an uncommon presentation of extranodal lymphoma. Colonic mucosa-associated lymphoid tissue lymphoma is a different entity from gastric mucosa-associated lymphoid tissue lymphoma, and very rare. The presentation and management of colonic mucosa-associated lymphoid tissue are highly variable in the literature.Case Presentation: We report the case of a 59-year-old Taiwanese man who underwent a colonoscopy after a positive test for fecal occult blood. His past history included hypertension and hyperthyroidism. The colonoscopy revealed an adenomatous polyp and mucosa-associated lymphoid tissue lymphoma. We successfully performed a polypectomy and endoscopic mucosal resection. The lymphoma was staged according to the Ann Arbor system modified by Musshoff as E-I. Our patient showed no lymphoma recurrence over a 3-year follow-up.Conclusions: Endoscopic mucosal resection for colonic mucosa-associated lymphoid tissue lymphoma without disseminated disease may be feasible. We successfully used colonoscopic treatment without adjuvant therapy to treat early-stage pathogen-free colonic mucosa-associated lymphoid tissue lymphoma. [ABSTRACT FROM AUTHOR]

Background: Colonic lymphoma is an uncommon presentation of extranodal lymphoma. Colonic mucosa-associated lymphoid tissue lymphoma is a different entity from gastric mucosa-associated lymphoid tissue lymphoma, and very rare. The presentation and management of colonic mucosa-associated lymphoid tissue are highly variable in the literature., Case Presentation: We report the case of a 59-year-old Taiwanese man who underwent a colonoscopy after a positive test for fecal occult blood. His past history included hypertension and hyperthyroidism. The colonoscopy revealed an adenomatous polyp and mucosa-associated lymphoid tissue lymphoma. We successfully performed a polypectomy and endoscopic mucosal resection. The lymphoma was staged according to the Ann Arbor system modified by Musshoff as E-I. Our patient showed no lymphoma recurrence over a 3-year follow-up., Conclusions: Endoscopic mucosal resection for colonic mucosa-associated lymphoid tissue lymphoma without disseminated disease may be feasible. We successfully used colonoscopic treatment without adjuvant therapy to treat early-stage pathogen-free colonic mucosa-associated lymphoid tissue lymphoma.

Background: Rectal cancer patients have a higher incidence of pulmonary metastases than those with colon cancer. This study aimed to examine the effects of rectal cancer level on recurrence patterns in rectal cancer patients., Methods: Patients with T3/T4 rectal cancers who underwent surgery between 2002 and 2006 were recruited in this study. All the patients were followed up on until death. Recurrence patterns and survival rates were calculated in relation to clinical variables., Results: There were 884 patients were enrolled in this study. Patients with low-rectal cancer had significantly worse five-year overall survival (OS) and disease-free survival (DFS) rates (47.25% and 44.07%, respectively) than patients with mid-rectal (63.46% and 60.22%, respectively) and upper-rectal cancers (73.91% and 71.87%, respectively). The level of the tumor (P <0.001), nodal status (P <0.001), tumor invasion depth (P <0.001), and tumor differentiation (P = 0.047, P = 0.015) significantly affected the surgical outcomes related to OS and DFS in the univariate and multivariate analyses. Furthermore, the level of the rectal cancer was a significant risk factor (hazard ratio 1.114; 95% CI, 1.074 to 1.161; P <0.001) for local recurrence, lung metastases, bone metastases, and systemic lymph node metastases. Significantly higher incidence rates of bone (53.8%) and brain metastases (22.6%) after initial lung metastases rather than initial liver metastases (14.8% and 2.9%, respectively) were also observed., Conclusions: For rectal cancer patients who underwent surgical resection, the rectal cancer level significantly affected surgical outcomes including rates and patterns of distant metastases.