G astrointestinal tract is the most common site of extranodal non-Hodgkin’s lymphoma. Small bowel involvement accounts for 20 30% of all gastrointestinal lymphomas (1). Among all intestinal lymphomas, the ileum is the most common involved area, with duodenal involvement only accounting for a small proportion (2). The most frequent histological type is diffuse large B-cell lymphoma (DLBCL). T-ce...

Extranodal presentation of B-cell lymphoma is uncommon. Isolated primary epiglottic B-cell lymphoma is even rarer. To our knowledge, there has been only one description of isolated B-cell lymphoma presenting as a large epiglottic mass. We report an unusual type of B-cell lymphoma of the epiglottis, as it could not be subtyped based on routine staining and hybridization. The lymphoma presented a...

The group of marginal zone B-cell lymphomas (MZL) comprises three different entities, extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (currently called MALT lymphoma), nodal marginal zone B-cell lymphoma (previously known as monocytoid lymphoma), and splenic marginal zone B-cell lymphoma (with or without circulating villous lymphocytes).[1-3] Primary splenic and no...

Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is a heterogeneous category of nodal and extranodal mature T-cell lymphomas. PTCL-NOS is a highly aggressive lymphoma, and its prognosis is poorer than those of aggressive B-cell lymphoma such as diffuse large B-cell lymphoma(DLBCL). Current standard chemotherapies for aggressive B-cell lymphoma, such as CHOP, are the commonly used ...

diffuse large b-cell lymphoma is the most common type of non-hodgkin lymphoma. micrornas (mirnas) are endogenous small rna, which can regulate gene expression at the post-transcriptional level. mirna profiling has shown a great potential as novel diagnostic and prognostic biomarkers. the present study was performed at the nemazee teaching hospital (shiraz, iran) from 2011 to 2013.the aim of thi...

background and objective: approximately half of patients with diffuse large b-cell lymphoma are cured with current chemotherapy regimens. the purpose of this study was to evaluate bax and bcl2 expression and their relationship with the response to chemotherapy. materials and methods this study was a prospective analysis on 44 patients with diffuse large b-cell lymphoma. their specimens were sta...

Primary adrenal lymphoma is a very rare extranodal lymphoma; its clinical features consist of a high incidence of bilateral adrenal involvement and diffuse large B-cell lymphoma. We report a patient with primary bilateral adrenal diffuse large B-cell lymphoma who achieved complete remission with R-CHOP (rituximab-cyclophosphamide, doxorubicin, vincristine, and prednisone) chemotherapy. A 52-yr-...

Recently, a novel mechanism introducing genetic instability, termed aberrant somatic hypermutation (ASHM), has been described in diffuse large B-cell lymphoma. To further investigate whether ASHM also occurs in mucosa-associated lymphoid tissue type (MALT) lymphoma, we studied the mutation profile of PIM1, PAX5, RhoH/TTF, and c-MYC in 17 MALT lymphomas and 17 extranodal diffuse large B-cell lym...

Marginal zone B-cell lymphoma (MZBCL) including extranodal mucosa-associated lymphoid tissue (MALT)-type lymphoma, nodal, and splenic MZBCL represents a distinct subtype of B-non-Hodgkin's lymphoma. Recently, important progress in the elucidation of the genetic mechanisms underlying the pathogenesis and disease progression of these lymphomas has been made. The API2 gene, an inhibitor of apoptos...