Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0079731 (B-cell lymphoma)
 16,671 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The murine B cell lymphoma 70Z/3 is a tumor line that resembles an early B cell. It responds to lipopolysaccharide by synthesizing kappa light chains, resulting in the appearance of surface IgM. We now demonstrate that this effect is triggered by the lipid A domain of lipopolysaccharide since a defined tetraacyl disaccharide 1,4'-bisphosphate precursor of mature lipid A, designated lipid IVA (Raetz, C. R. H., Purcell, S., Meyer, M. V., Qureshi, N., and Takayama, K. (1985) J. Biol. Chem. 260, 16080-16088), is fully active in stimulating kappa chain mRNA synthesis. In contrast, the monosaccharide lipid A precursor, lipid X, shows only slight activity; but a large excess of lipid X appears to complete with lipid IVA, partially blocking its effects. Mutants of the 70Z/3 line that are unresponsive to lipopolysaccharide also fail to respond to lipid IVA. The somatic cell system described here, coupled with the use of chemically defined agonists and antagonists, offers a new approach to understanding the early events in lipopolysaccharide/animal cell interactions.
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PMID:Induction of kappa light chain synthesis in 70Z/3 B lymphoma cells by chemically defined lipid A precursors. 312 35

Non-Hodgkin's lymphomas (NHL) involving the vulva are rare. We report the clinicopathologic and immunohistochemical findings of six cases of vulvar NHL. The age of the patients ranged from 43 to 71 years (mean 60 years), and 5 presented with a vulvar mass. Two patients had neoplasms localized to the vulva, and two patients had a history of NHL that secondarily involved the vulva; in another patient the stage was unknown, and the sixth patient had stage IVA mycosis fungoides/Sezary syndrome involving the vulva. Each tumor was classified according to the revised European-American classification of lymphoid neoplasms: four were diffuse large B-cell lymphoma, one was peripheral T-cell lymphoma, and one was mycosis fungoides/Sezary syndrome. Two patients were treated with chemotherapy and radiotherapy, one patient received chemotherapy and phototherapy, one patient was treated with chemotherapy, and in two patients the treatment is unknown. Clinical follow-up, available for 4 cases, ranged from 7 months to 5 years. One patient with low-stage NHL responded to therapy, but relapsed and died of disease 2 years later. Two patients with generalized NHL that secondarily involved the vulva died of disease 7 months and 5 years, respectively, after the diagnosis of vulvar involvement was established. The patient with mycosis fungoides/Sezary syndrome is alive with disease at 4 years. The three patients in this study who died and our review of the literature indicate that NHL involving the vulva is usually an aggressive disease.
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PMID:Non-Hodgkin's lymphoma involving the vulva. 1090 72

Follicular lymphoma (FL) is the most common indolent or low-grade non-Hodgkin lymphoma (NHL). Histologic transformation to high-grade lymphoma, generally to diffuse large B-cell lymphoma, occurs in 25-35% of cases. Although t(14;18), the cytogenetic hallmark of FL, has been found in approximately 85% of these cases, multiple secondary cytogenetic and molecular genetic changes underlie the transformation process. We report the case of a 58-year-old patient who presented with stage IVA, grade 2 FL that subsequently transformed to Burkitt lymphoma. Multiple chromosomal aberrations, including three novel translocations, were observed related to this transformation. Inversion (1)(p36.3q12) and t(3;14;18)(p23;q32;q21) occurred prior to transformation and may have contributed to the transformation process. A t(1;11)(q25;q13) was acquired simultaneously with t(8;22) and, in conjunction with other chromosomal abnormalities, coincided with an extremely aggressive clinical course. The frequent breakage of 1q observed in this case suggests that the region harbors important genomic signals for the transformation of FL.
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PMID:Serial cytogenetic alterations resulting in transformation of a low-grade follicular lymphoma to Burkitt lymphoma. 1701 85

A family is reported in which three male siblings of Asian descent developed non-Hodgkin's lymphoma (NHL). Case 1 was diagnosed with indolent follicular lymphoma stage IIIA at age 45. Case 2 presented with large B-cell lymphoma stage IIB at age 56. Chromosomal investigation of the peripheral blood did not show abnormalities. Chemotherapy induced a complete remission. However, after a period of nearly ten years he developed acute myeloid leukaemia. Case 3 developed large B-cell lymphoma stage IVA at age 52. Cytogenetic analysis in peripheral blood was normal. Shared genetic and environmental risk factors remain to be identified in this family. Familial aggregation of NHL is uncommon. In some families, various forms of immunodeficiency have been found. In addition to coincidental clustering of cases, and rare cases explained by known tumour syndromes such as Li-Fraumeni (like) syndrome, other familial cases may share as yet unknown genetic and/or environmental risk factors.
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PMID:Familial Aggregation of Non-Hodgkin's Lymphoma (NHL). A Case Report. 2022 17

PET scan and PET/CT scans are being widely used for staging of diffuse large B-cell lymphoma (DLBCL) and Hodgkin lymphoma. They are sensitive and specific imaging techniques available for lymphoma. However, practicing hematologists must be aware of false-positive tests, which can upgrade the stage of the lymphoma significantly and may alter the treatment paradigm for an individual patient. This report describes a case of DLBCL that was upgraded with PET/CT scan to stage IVA from stage IA. Pursuit of tissue biopsy with minimally invasive surgery eventually confirmed it to be stage IA DLBCL and paraesophageal leiomyoma. This case highlights the potential pitfalls of modern imaging techniques and the need for histologic diagnosis.
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PMID:A case of diffuse large B-cell lymphoma in association with paraesophageal leiomyoma: highlighting false-positivity of PET scan and importance of tissue diagnosis. 2257 Feb 88

A 60-year-old man complained of nausea, vomiting, decreased appetite, and a feeling of abdominal fullness in August 2013. Based on biopsy findings from an upper gastrointestinal endoscopy examination, a diagnosis of non-Hodgkin's lymphoma (NHL), diffuse large B-cell lymphoma (DLBCL), non-GC type, was made. F18-fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) revealed abnormal accumulations solely in the gastric wall (SUVmax = 14.5), the left adrenal gland (SUVmax = 14.3), and the right adrenal gland (SUVmax = 8.5). The clinical stage (Ann Arbor) was IVA, the serum LDH level was within the reference range, and the International Prognostic Index (IPI) was low-intermediate. The serum soluble IL-2 receptor level was within the reference range, and there was no evidence of HIV, EB virus, or autoimmune disease. After the completion of 4 cycles of R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) and 2 parallel cycles of prophylactic intrathecal (I.T.), an upper gastrointestinal endoscopy and a FDG-PET/CT examination showed complete remission (CR). The patient received 8 cycles of ritsuximab therapy, 6 cycles of CHOP, and 3 cycles of I.T. The patient has maintained a CR for about 14 months. A literature search revealed that malignant lymphoma with involvement confined to the adrenal gland and gastrointestinal tract is exceedingly rare, and only 3 cases of malignant lymphoma have been reported, with involvement of the stomach in 2 cases and the duodenum in 1 case. All of the cases were diagnosed as DLBCL. The case described herein represents the third case with involvement of the stomach.
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PMID:Diffuse large B-cell lymphoma solely involving bilateral adrenal glands and stomach: report of an extremely rare case with review of the literature. 2555 Aug 71

Primary cardiac lymphoma is extremely rare and is associated with a poor prognosis. In most cases, cardiac involvement occurs as a late symptom and the diagnosis is thus delayed. We herein report a 35-year-old woman with cardiac diffuse large B-cell lymphoma (DLBCL) with breast infiltration. The patient was admitted to our hospital based on an initial presentation with dyspnea on exertion, chest pain, and a hard mass of the left breast. Echocardiography revealed a mass in the right atrium wall and interatrial septum, and massive pericardial effusion. ECG showed atrioventoricular block. We promptly performed a needle biopsy of the breast mass, which showed CD5-positive DLBCL, non-GCB type. The serum HIV reaction was negative. We thus diagnosed this patient as having cardiac and breast CD5-positive DLBCL, stage IVA, based on the massive pericardial effusion. The patient's prognosis was apparently poor. Therefore, she received 3 cycles of R-CHOP chemotherapy followed by autologous peripheral blood stem cell transplantation (PBSCT), resulting in a complete response. In general, cardiac lymphoma is associated with high mortality and has a poor prognosis. This case demonstrates that rapid and appropriate diagnosis, and immediate intensive chemotherapy followed by PBSCT might be necessary for the treatment of extranodal lymphoma indicative of a poor prognosis.
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PMID:[Cardiac and breast diffuse large B-cell lymphoma with pericardial effusion and AV-block]. 2574 61

A 73-year-old man presented with right lower back pain and dysuria. Right hydronephrosis and a large pelvic large mass were seen on computed tomography (CT). Although his prostate-specific antigen (PSA) was 0.5 ng/mL, an irregularly enlarged, stony, hard prostate was palpable on digital rectal examination. A prostate tumor was suspected, and a transrectal prostate biopsy and right transurethral ureteral stent placement were performed. Histological and immunohistochemical studies revealed diffuse large B-cell lymphoma. Positron emission tomography-computed tomography showed abnormal uptake in the stomach, cecum, right obturator lymph nodes, para-aortic lymph nodes, and dorsal left kidney. No abnormal findings were seen on bone marrow histology. Clinical stage IVA was confirmed according to Ann Arbor criteria. The patient achieved a complete response after 8 cycles of combination chemotherapy with rituximab, pirarubicin, cyclophosphamide, vincristine, and prednisolone.
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PMID:A Case of Primary Malignant Lymphoma of the Prostate Gland Presenting as Right Lower Back Pain and Dysuria. 3025 94