Multiple lymphomatous polyposis (MLP) is an unusual form of non-Hodgkin's lymphoma characterized by polyps throughout the gastrointestinal tract. It has been reported that most MLP are observed in cases with mantl...Multiple lymphomatous polyposis (MLP) is an unusual form of non-Hodgkin's lymphoma characterized by polyps throughout the gastrointestinal tract. It has been reported that most MLP are observed in cases with mantle cell lymphoma of B-cell type. We herein present a case of a 66-year-old man with adult T-cell leukemia/lymphoma (ATLL). Colonoscopy revealed MLP throughout the colon and histopathological findings of ATLL cell infiltration. The patient died despite combination of chemotherapy. The literature of manifestations of colonic involvement of ATLL isreviewed and the importance of endoscopic evaluation to differentiate ATLL intestinal lesions from opportunistic infectious enterocolitis is discussed.展开更多
Diffuse large B-cell lymphoma (DLBCL) is regarded as a heterogeneous group of lymphomas. The aims of this study were to determine the clinical significance and prognostic value of different immunophenotypic profiles i...Diffuse large B-cell lymphoma (DLBCL) is regarded as a heterogeneous group of lymphomas. The aims of this study were to determine the clinical significance and prognostic value of different immunophenotypic profiles in localized-stage head and neck DLBCL treated with curative radiotherapy. We included 102 localized-stage head and neck DLBCL patients in this study. We classified DLBCL patients into germinal center B-cell (GCB) and non-GCB groups by immunohistochemical analysis. Statistical analysis was used to correlate the GCB and non-GCB subgroups, CD5 and Ki67 expression, B-ALPS (a modified International Prognostic Index for early stage lymphoma), chemotherapy regimen, and sex. Multivariate analysis was performed using the Cox proportional hazard regression model to compare cause-specific survival (CSS) and relapse-free rate (RFR) distributions. The cell of origin classification (GCB or non-GCB subtypes) was an independent predictor of CSS (p = 0.040) and RFR (p = 0.023). In the non-GCB group, chemotherapy with rituximab was an independent predictor of CSS. In conclusion, this study shows that the prognosis of the non-GCB group was significantly poorer than that of the GCB group, and that rituximab improved CSS in localized-stage head and neck DLBCL, especially in the non-GCB group.展开更多
文摘Multiple lymphomatous polyposis (MLP) is an unusual form of non-Hodgkin's lymphoma characterized by polyps throughout the gastrointestinal tract. It has been reported that most MLP are observed in cases with mantle cell lymphoma of B-cell type. We herein present a case of a 66-year-old man with adult T-cell leukemia/lymphoma (ATLL). Colonoscopy revealed MLP throughout the colon and histopathological findings of ATLL cell infiltration. The patient died despite combination of chemotherapy. The literature of manifestations of colonic involvement of ATLL isreviewed and the importance of endoscopic evaluation to differentiate ATLL intestinal lesions from opportunistic infectious enterocolitis is discussed.
文摘Diffuse large B-cell lymphoma (DLBCL) is regarded as a heterogeneous group of lymphomas. The aims of this study were to determine the clinical significance and prognostic value of different immunophenotypic profiles in localized-stage head and neck DLBCL treated with curative radiotherapy. We included 102 localized-stage head and neck DLBCL patients in this study. We classified DLBCL patients into germinal center B-cell (GCB) and non-GCB groups by immunohistochemical analysis. Statistical analysis was used to correlate the GCB and non-GCB subgroups, CD5 and Ki67 expression, B-ALPS (a modified International Prognostic Index for early stage lymphoma), chemotherapy regimen, and sex. Multivariate analysis was performed using the Cox proportional hazard regression model to compare cause-specific survival (CSS) and relapse-free rate (RFR) distributions. The cell of origin classification (GCB or non-GCB subtypes) was an independent predictor of CSS (p = 0.040) and RFR (p = 0.023). In the non-GCB group, chemotherapy with rituximab was an independent predictor of CSS. In conclusion, this study shows that the prognosis of the non-GCB group was significantly poorer than that of the GCB group, and that rituximab improved CSS in localized-stage head and neck DLBCL, especially in the non-GCB group.
