Malignant lymphomas represent approximately 5% of all malignant neoplasms of the head and neck and may involve nodal or extranodal sites. Nodal head and neck lymphomas are similar to other nodal sites and are not further reviewed here. The head and neck region is the second most frequent anatomical site of extranodal lymphomas (after the gastrointestinal tract). Most are non-Hodgkin's lymphomas...

mantle cell lymphoma is an aggressive type of b-cell non-hodgkin's lymphoma that originates from small to medium sized lymphocytes located in the mantle zone of the lymph node. the gastrointestinal tract is the predominant site of extranodal involvement in the form of multiple lymphomatous polyposis. multiple lymphomatous polyposis due to mantle cell lymphoma presenting with intussusception is ...

editorial Diffuse large B-cell lymphoma of the breast: a distinct entity? The management of squamous cell carcinoma arising in the lung is markedly different than squamous cell carcinoma of the skin, cervix, or larynx. Likewise, the optimal management of diffuse large B-cell lymphoma sometimes varies by the primary site of involvement. Knowledge of the unique clinical behavior of lymphoma arisi...

A 61-year-old man with relapsing-remitting multiple sclerosis developed extranodal large B-cell lymphoma of the stomach following monthly natalizumab infusions for 6 years. Development of lymphoproliferative disorders increases with chronic use of immunosuppression. Cases of primary central nervous system lymphoma as well as one case of peripheral T-cell lymphoma have previously been reported w...

peripheral t-cell lymphomas are a group of heterogeneous disorders and according to who classification, are categorized into nodal and extranodal forms. nk/t-cell lymphoma, nasal type, is a subtype of extranodal peripheral t-cell lymphoma and commonly presents as a midfacial destructive lesion. this disorder is more prevalent in asia and south america and has a strong association with epstein b...

Peripheral T-cell lymphomas are a group of heterogeneous disorders and according to WHO classification, are categorized into nodal and extranodal forms. NK/T-cell lymphoma, nasal type, is a subtype of extranodal peripheral T-cell lymphoma and commonly presents as a midfacial destructive lesion. This disorder is more prevalent in Asia and South America and has a strong association with Epstein B...

To estimate the distribution of lymphoid neoplasms in China, we conducted a comprehensive analysis, based on subtype, age, sex, and lesion, of primary and resected biopsy specimens of 4,638 lymphoid neoplasms diagnosed from 2004 to 2008 at 5 large hospitals. Of the 4,638 patients, mature B-cell neoplasms accounted for 64.3% of all lymphoid neoplasms, mature T/NK-cell neoplasms for 23.3%, and Ho...

Intravascular large B-cell Lymphoma (IVLBCL) is a rare subtype of extranodal non-Hodgkin’s lymphoma that challenging to diagnose and has poor prognosis. Here, we describe two patients newly diagnosed with IVLBCL at our institution: an African man hemophagocytic-syndrome-associated Italian woman cutaneous variant IVLBCL. They presented very different clinical manifestations. Both cases were in t...

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...