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Burkitt's lymphoma is a cancer of the lymphatic system, particularly B lymphocytes found in the germinal center. It is named after Denis Parsons Burkitt , the Irish surgeon who first described the disease in 1958 while working in equatorial Africa .
Burkitt lymphoma occurs in three forms. Epidemic Burkitt lymphoma (eBL) is common in Africa, the Middle East, Brazil, Papua New Guinea, and other areas where malaria is endemic. It usually presents in children 4–7 years old and in almost all cases is associated with EBV infection. [31] Sporadic Burkitt lymphoma (sBL) is rare.
In contrast, reactivation in adults usually occurs without symptoms of illness. EBV also establishes a lifelong dormant infection in some cells of the body's immune system. A late event in a very few carriers of this virus is the emergence of Burkitt's lymphoma and nasopharyngeal carcinoma, two rare cancers.
The virus is also associated with various non-malignant, premalignant, and malignant Epstein–Barr virus-associated lymphoproliferative diseases such as Burkitt lymphoma, hemophagocytic lymphohistiocytosis, [4] and Hodgkin's lymphoma; non-lymphoid malignancies such as gastric cancer and nasopharyngeal carcinoma; and conditions associated with ...
Though EBNA1 is a well-characterized protein, its role in oncogenesis is less well defined. It is consistently expressed in EBV-associated tumors. [1] EBNA1 is the only identified latent protein-encoding genes that it consistently expressed in Burkitt's lymphoma cells [6] and is believed to contribute to EBV malignancies through B cell-directed expression.
Aggressive lymphoma, also known as high-grade lymphoma, is a group of fast growing non-Hodgkin lymphoma. [1]There are several subtypes of aggressive lymphoma. These include AIDS-associated lymphoma, angioimmunoblastic lymphoma, Burkitt lymphoma, central nervous system (CNS) lymphoma, diffuse large B-cell lymphoma (DLBCL), mantle cell lymphoma (MCL) and peripheral T-cell lymphoma. [1]
Diffuse large B-cell lymphoma associated with chronic inflammation (DLBCL-CI) is a subtype of the Diffuse large B-cell lymphomas and a rare form of the Epstein–Barr virus-associated lymphoproliferative diseases, i.e. conditions in which lymphocytes infected with the Epstein-Barr virus (EBV) proliferate excessively in one or more tissues.
Cancers associated with the Epstein–Barr virus include Burkitt's lymphoma, Hodgkin's lymphoma and lymphomas in general as well as nasopharyngeal and gastric carcinoma. [66] Hemophagocytic lymphohistiocytosis [67] Once the acute symptoms of an initial infection disappear, they often do not return.
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