Primary Low-Grade B-Cell Lymphoma of Mucosa-Associated Lymphoid Tissue Type Arising in the Urinary Bladder

2001 ◽  
Vol 125 (3) ◽  
pp. 332-336 ◽  
Author(s):  
Jaudah Al-Maghrabi ◽  
Suzanne Kamel-Reid ◽  
Michael Jewett ◽  
Mary Gospodarowicz ◽  
Woodrow Wells ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Urinary Bladder ◽  
B Cell ◽  
Lymphoid Tissue ◽  
Tissue Type ◽  
Low Grade ◽  
Chronic Cystitis ◽  
Chain Reaction ◽  
History Of ◽  
Polymerase Chain

Abstract Context.—Primary lymphoma of the urinary bladder is rare. Only 84 cases have been reported in the English literature to date, and none of these cases has had molecular confirmation of clonal immunoglobulin gene rearrangement. Objectives.—To review all cases with primary urinary bladder lymphoma in our records, to classify them using the REAL classification, to confirm their immunophenotype and genotype, and to determine their outcome. Design.—We identified 4 cases of primary urinary bladder lymphoma in our medical records from a 30-year period. Immunohistochemical detection of immunoglobulin light chains and molecular analysis of immunoglobulin heavy-chain genes using the polymerase chain reaction were performed on paraffin-embedded material. Results.—All patients were older than 60 years. The male-female ratio was 1:3. All patients had a history of chronic cystitis. Histologic features of mucosa-associated lymphoid tissue lymphoma with centrocyte-like cells, plasmacytoid B cells, or both were observed in all cases. Monoclonality of B cells was demonstrated by immunohistochemistry, polymerase chain reaction, or both methods in every case. All patients presented with stage IAE disease, were treated with radiotherapy alone, and have been in continuous complete remission for 2 to 13 years. Conclusions.—Primary bladder lymphomas are usually of low-grade mucosa-associated lymphoid tissue type. They are more common in females and are associated with a history of chronic cystitis. Lymphoepithelial lesions are seen only in association with areas of cystitis glandularis. B-cell clonality is readily demonstrable by immunohistochemistry and/or polymerase chain reaction analysis. Local radiotherapy appears to confer long-term control.

Detection of monoclonality in low-grade B-cell lymphomas using the polymerase chain reaction is dependent on primer selection and lymphoma type

1993 ◽  
Vol 169 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Tim C. Diss ◽  
Huaizheng Peng ◽  
Andrew C. Wotherspoon ◽  
Peter G. Isaacson ◽  
Langxing Pan
Keyword(s):  
Polymerase Chain Reaction ◽  
B Cell ◽  
Low Grade ◽  
B Cell Lymphomas ◽  
Chain Reaction ◽  
Primer Selection ◽  
Polymerase Chain ◽  
Lymphoma Type

scholarly journals Diagnosis and posttreatment follow-up of Helicobacter pylori-positive gastric lymphoma of mucosa-associated lymphoid tissue: histology, polymerase chain reaction, or both?

Blood ◽  
1996 ◽  
Vol 87 (4) ◽  
pp. 1255-1260 ◽  
Author(s):  
A Savio ◽  
G Franzin ◽  
AC Wotherspoon ◽  
G Zamboni ◽  
R Negrini ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
B Cell ◽  
Lymphoid Tissue ◽  
Gastric Lymphoma ◽  
Cell Populations ◽  
Chain Reaction ◽  
Clonal Population ◽  
Biopsy Specimens ◽  
Polymerase Chain ◽  
H Pylori

The differential diagnosis between Helicobacter pylori (H pylori- associated chronic gastritis and low-grade B-cell gastric lymphoma of mucosa-associated lymphoid tissue (MALT) and the assessment of endoscopic biopsy specimens after treatment of lymphoma can be problematic. Although immunocytochemistry can be used to identify clonal B-cell populations, which are characteristic of MALT lymphoma, its application to small biopsy specimens and the subsequent interpretation can be difficult. The polymerase chain reaction (PCR) can detect clonal B-cell populations by analysis of the Ig heavy chain gene in routinely fixed paraffin-embedded material and might provide a useful tool in the assessment of these specimens. We have investigated the value of histology and PCR in the diagnosis of lymphoma and its followup in formalin-fixed paraffin-embedded gastric endoscopy biopsy specimens from 69 sequential patients selected on the basis of a dense mucosal lymphoid infiltrate associated with H pylori infection. Histologic evidence of MALT lymphoma was identified in 13 cases, 9 of which showed PCR-detected monoclonality. In 12 of 13 cases, H pylori was eradicated, and in 11 of 12 cases, histologic regression of the lymphoma followed. PCR evidence of monoclonality disappeared in 6 of 9 originally monoclonal cases. This was synchronous with histologic remission in 1 case, but lagged in the remaining 5 cases by up to 28 months. Two of the 3 of the 9 cases originally monoclonal by PCR that have not shown molecular regression have monoclonal-amplified products 17 and 24 months after negative histology. In 3 cases, the histology of the biopsies was considered indeterminate or discordant. In 1 of these cases, the histologic features were obscured by crush artefact. In a second case, there was molecular evidence of monoclonality in the absence of histologic features suggestive of lymphoma; this persisted after H pylori eradication. An additional single case originally diagnosed as reactive developed a PCR detectable clonal population 29 months after original evaluation in the absence of histologic features of lymphoma but in the presence of persistent H pylori infection. These findings suggest that the histologic assessment of gastric biopsies remains the method of choice for the diagnosis of lymphoma in gastric endoscopic biopsies with a dense mucosal lymphoid infiltrate. PCR provides a useful technique to support the diagnosis if clonal amplification products are found. The significance of PCR detected clonality in the absence of histologic evidence of lymphoma in uncertain but may represent a stage of tumor progression/regression when the clonal population is insufficient to be detected by conventional histology. This is supported by the evidence that PCR- detectable monoclonality can persist after treatment and the disappearance of histologically detectable lymphoma.

scholarly journals Application of a Polymerase Chain Reaction Assay for Detection of Proliferative Enteritis-Affected Swine Herds

1996 ◽  
Vol 8 (2) ◽  
pp. 181-185 ◽  
Author(s):  
Patricia K. Holyoake ◽  
Gary F. Jones ◽  
Peter R. Davies ◽  
Dennis L. Foss ◽  
Michael P. Murtaugh
Keyword(s):  
Polymerase Chain Reaction ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Nursery Pigs ◽  
Clinically Normal ◽  
Source Of Infection ◽  
History Of ◽  
Polymerase Chain ◽  
Swine Herds ◽  
Age Range

A polymerase chain reaction (PCR) assay was used to confirm the presence of ileal symbiont (IS) intracellularis in 3 swine herds with a history of proliferative enteritis (PE). Two pooled fecal specimens, each comprising 5 individual stool samples, were collected from pen floors to screen for the presence of IS intracellularis and determine the age range of pigs shedding the organism. IS intracellularis was detected in the feces of clinically normal 10–25week-old grower/finisher pigs, indicating that this age range of pigs was the main source of infection for younger nursery pigs. Shedding continued without clinical disease when 10–100 g/ton of tylosin or 10 g/ton of chlortetracycline was added to the feed. PCR testing of pooled fecal samples can be used to identify groups of pigs affected with PE. The results of this study indicate that this PCR assay has the potential to accurately assess the IS intracellularis infection status of swine herds and the association of IS intracellular-is with PE and growth performance.

T(11;18)(q21;q21) is associated with advanced mucosa-associated lymphoid tissue lymphoma that expresses nuclear BCL10

Blood ◽  
2001 ◽  
Vol 98 (4) ◽  
pp. 1182-1187 ◽  
Author(s):  
Hongxiang Liu ◽  
Hongtao Ye ◽  
Ahmet Dogan ◽  
Renzo Ranaldi ◽  
Rifat A. Hamoudi ◽  
...  
Keyword(s):  
Malt Lymphoma ◽  
Lymphoid Tissue ◽  
Fusion Transcript ◽  
Low Grade ◽  
Chain Reaction ◽  
Nuclear Expression ◽  
Molecular Events ◽  
Multistep Process ◽  
Polymerase Chain ◽  
H Pylori

The development of gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a multistep process and can be clinico-pathologically divided into Helicobacter pylori-associated gastritis, low-grade tumors, and high-grade tumors. The molecular events underlying this progression are largely unknown. However, identification of the genes involved in MALT lymphoma-specific t(11;18)(q21;q21) and t(1;14)(p22;q32) has provided fresh insights into the pathogenesis of this disease. T(11;18)(q21;q21) results in a chimeric transcript between the API2 and theMALT1 genes, whereas t(1;14) (p22;q32) causes aberrant nuclear BCL10 expression. Significantly, nuclear BCL10 expression also occurs frequently in MALT lymphomas without t(1;14)(p22;q32), suggesting an important role for BCL10 in lymphoma development. Thirty-three cases of H pylori gastritis, 72 MALT lymphomas, and 11 mucosal diffuse large B-cell lymphomas (DLBCL) were screened for t(11;18)(q21;q21) by reverse transcription–polymerase chain reaction followed by sequencing. BCL10 expression in lymphoma cases was examined by immunohistochemistry. The API2–MALT1 fusion transcript was not detected in H pylorigastritis and mucosal DLBCL but was found in 25 of 72 (35%) MALT lymphomas of various sites. Nuclear BCL10 expression was seen in 28 of 53 (53%) of MALT lymphomas. Of the gastric cases, the largest group studied, the frequency of both t(11;18)(q21;q21) and nuclear BCL10 expression was significantly higher in tumors that showed dissemination to local lymph nodes or distal sites (14 of 18 = 78% and 14 of 15 = 93%, respectively) than those confined to the stomach (3 of 29 = 10% and 10 of 26 = 38%). Furthermore, t(11;18)(q21;q21) closely correlated with BCL10 nuclear expression. These results indicate that both t(11;18)(q21;q21) and BCL10 nuclear expression are associated with advanced MALT lymphoma and that their oncogenic activities may be related to each other.

Mantle Cell Lymphoma

1999 ◽  
Vol 123 (12) ◽  
pp. 1182-1188 ◽  
Author(s):  
Rebecca C. Hankin ◽  
Susan V. Hunter
Keyword(s):  
Polymerase Chain Reaction ◽  
B Cell ◽  
Mantle Cell Lymphoma ◽  
Diagnostic Tests ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Molecular Diagnostic ◽  
Chain Reaction ◽  
Mantle Cell ◽  
Polymerase Chain

Abstract Objective.—This article summarizes the most useful ancillary immunohistochemical and molecular assays for use in the diagnosis of mantle cell lymphoma. Data Sources.—The English language literature was surveyed, with an emphasis on recent publications, for articles presenting key advances in the molecular characterization of mantle cell lymphomas and for series of cases testing the utility of molecular diagnostic tests. The authors' series of 26 small B-cell lymphomas, analyzed for the cyclin D1 protein by paraffin immunohistochemistry and for t(11;14) by polymerase chain reaction, is included. Conclusions.—Mantle cell lymphoma, a B-cell lymphoma now recognized in the 1994 Revised European-American Classification of Lymphoid Neoplasms (REAL) classification, is a relatively aggressive lymphoma with a poor prognosis. Its characteristic t(11;14)(q13;q32) translocation has a role in oncogenesis and has been exploited for molecular diagnostic tests, but these tests vary in sensitivity, specificity, and ease of use. Improved immunohistochemical tests are sufficient to confirm the diagnosis in most cases. Conventional cytogenetics and molecular diagnostic tests for t(11;14)—Southern blot and polymerase chain reaction analysis—may be helpful in selected cases, but are laborious or of limited sensitivity. Other methods, such as fluorescence in situ hybridization, need further development to provide faster, more sensitive diagnosis.

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