Syndrome-Associated Non-Hodgkin's Lymphoma: Association With Diffuse Large-Cell Subtype
نویسندگان
چکیده
Acquired immunodeficiency syndrome (AIDS)-associated non-Hodgkin's lymphomas (AIDS-NHL), a major source of morbidity and morta l i i among AIDS patients, are derived from B cells and can be classified into two main histologic categories, m a l l noncleaved cell lymphoma (SNCCL) and diffuse large-cell lymphoma (DLCL). DLCL includes two histologic subsets, ie, large noncleaved cell lymphoma (LNCCL) and large cell-immunoblastic plasmacytoid lymphoma (LCIBPL). Several studies have shown that AIDSSNCCL is associated with the clonal accumulation of multiple genetic lesions, including Epstein-Barr virus (EBV) infection, activation of the c-MYC and M S oncogenes, as well as inactivation of the p53 tumor suppressor gene at variable froquencies. On the contrary, the molecular pathogenesis of AIDS-DLCL is largely obscure, because no genetic lesion other than EBV infection has been specifically identified in this group. In this
منابع مشابه
آسیب شناسی و علائم بالینی 84 کودک مبتلا به لنفوم های غیر هوچکینی
Non-Hodgkin's lymphoma is the 3rd most common cancers in children. In the present study, to determine pathological and clinical features of this cancer, we reviewed records of 84 cases of non-Hodgkin's lymphoma who were admitted to Ali Asghar and Bahrami children hospitals from 1989 to 1996. 59% of cases had small non-cleaved cell (SNCC) subtype of disease. 15% were lymphoblastic and 5% diffuse...
متن کاملHead and Neck Lymphoma in an Iranian Population
Introduction: This study is aimed to assess the prevalence and characteristics of head and neck lymphoma in a defined group of an Iranian population. Materials and Methods: In this retrospective study, 126,450 biopsy reports from two referral Pathology Departments, (Tehran, the capital of Iran) were evaluated. In cases with head and neck lymphoma, other variables such as age, sex, specific lo...
متن کاملRAPID COMMUNICATION Rearrangements of the BCL-6 Gene in Acquired Immunodeficiency Syndrome-Associated Non-Hodgkin's Lymphoma: Association With Diffuse Large-Cell Subtype
Acquired immunodeficiency syndrome (AIDS)-associated non-Hodgkin's lymphomas (AIDS-NHL), a major source of morbidity and morta l i i among AIDS patients, are derived from B cells and can be classified into two main histologic categories, m a l l noncleaved cell lymphoma (SNCCL) and diffuse large-cell lymphoma (DLCL). DLCL includes two histologic subsets, ie, large noncleaved cell lymphoma (LNCC...
متن کاملExtranodal involvement in lymphoma – A Pictorial Essay and Retrospective Analysis of 281 PET/CT studies
Objective(s): The aim of this study is to evaluate the role of PET-CT in identification of different patterns of extranodal involvement in Hodgkin’s disease (HD) and Non-Hodgkin’s Lymphoma (NHL) and to enlist the common sites of extranodal involvement in each histological type and compare our results with the existing literature. Methods: In this retrospective study of 281 cases of lymphomas of...
متن کاملEarly detection of intravascular large B-cell lymphoma by 18FDG-PET/CT with diffuse FDG uptake in the lung without respiratory symptoms or chest CT abnormalities
Intravascular large B-cell lymphoma (IVLBCL) is a rare and aggressive subtype of systemic extranodal non-Hodgkin diffuse large B-cell lymphoma (DLBCL). We report a rare case of IVLBCL who showed diffuse 18F-fluorodeoxyglucose (FDG) uptake in the lung in FDG-positron emission tomography/computed tomography (PET/CT) without respiratory symptoms or chest CT abnormalities. Serum biochemical studies...
متن کامل