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  1. Maninderpal KG, Amir FH, Azad HA, Mun KS
    Br J Radiol, 2011 Sep;84(1005):e186-90.
    PMID: 21849361 DOI: 10.1259/bjr/66130737
    Secondary involvement of the urinary bladder in non-Hodgkin's lymphoma is relatively common; however, primary malignant lymphoma of this organ is extremely rare. The most common type of primary bladder lymphoma is a low-grade B-cell mucosa-associated lymphoid tissue (MALT) lymphoma. We report here on the imaging findings of a primary bladder lymphoma with bone marrow infiltration.
    Matched MeSH terms: Lymphoma, B-Cell, Marginal Zone/pathology
  2. Tai YC, Tan JA, Peh SC
    Pathol. Int., 2004 Nov;54(11):811-8.
    PMID: 15533223
    p53 gene mutation is not a frequent event in the tumorigenesis of lymphomas and the expression of p53 protein is independent of p53 gene mutations. The present study aimed to investigate mutations in the p53 gene in a series of extranodal B-cell lymphomas, and its association with p53 protein expression. A total of 52 cases were graded histologically into Grade 1, Grade 2 and Grade 3 tumors and p53 protein expression was detected using immunohistochemistry. Mutations in the p53 gene were analyzed using polymerase chain reaction single-strand conformation polymorphism (PCR-SSCP) and mobility shifts were confirmed by direct sequencing. The tumors comprised 26 (50%) Grade 1, 9 (17%) Grade 2 and 15 (29%) Grade 3. A high proportion of Grade 2 (25%) tumors expressed p53 protein (P = 0.051) and carried p53 gene mutation (33%) (P = 0.218). However, p53 protein expression was not associated with p53 gene mutations (P = 0.057). Transversion mutations (88%) were more frequently detected than transition mutations (12%). The present study revealed that p53 gene mutations and p53 protein expression occurred in higher frequencies in Grade 2 tumors, which may be of pathogenetic importance. The high frequency of transversion mutations may reflect the influence of an etiological agent in the tumorigenesis of mucosa-associated lymphoid tissue (MALT lymphoma).
    Matched MeSH terms: Lymphoma, B-Cell, Marginal Zone/pathology*
  3. Masir N, Jones M, Lee AM, Goff LK, Clear AJ, Lister A, et al.
    Histopathology, 2010 Apr;56(5):617-26.
    PMID: 20459572 DOI: 10.1111/j.1365-2559.2010.03524.x
    To investigate the relationship between Bcl-2 protein expression and cell proliferation at single-cell level in B-cell lymphomas using double-labelling techniques.
    Matched MeSH terms: Lymphoma, B-Cell, Marginal Zone/pathology
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