نتایج جستجو برای: mucosal associated lymph tissue malt
تعداد نتایج: 2315116 فیلتر نتایج به سال:
Twenty-eight cases of monocytoid B-cell lymphoma of lymph nodes and 16 lymph node metastases of primary gastric lymphomas, mostly low-grade B-cell lymphomas of mucosa-associated lymphoid tissue (MALT) type were investigated morphologically and immunohistochemically. Both groups showed the same morphological and immunohistochemical features: diagnostically important sites of infiltration were th...
AIMS To determine the expression of CD43 in frozen sections in a range of B cell lymphomas. METHODS The monoclonal antibody WR14, clustered provisionally in the Fourth Leucocyte Typing Workshop as a CD43 reagent, was investigated by epitope blocking studies on formalin fixed reactive lymph node tissue, using the established CD43 antibody MT1, to validate its use as a CD43 reagent. CD43 expres...
Extranodal marginal zone B-cell lymphoma is a discrete clinicopathological entity arising in mucosa-associated lymphoid tissue (MALT) that has commanded increasing attention in recent years because of its unique pathogenetic, histologic, and clinical features.1-3 Two types of MALT can be identified in disparate organs that do not correspond to peripheral sites of the immune system. The native t...
Primary breast mucosa-associated lymphoid tissue (MALT) lymphomas are uncommon and restricted diagnostic criteria should be used to exclude breast involvement by systemic lymphomas. The molecular pathogenesis of primary breast MALT lymphomas is not clear because of the rarity of the disease. Generally the molecular studies of MALT lymphoma in extr...
We report a very rare case of primary low grade mucosa associated lymphoid tissue (MALT) lymphoma of the oesophagus. An 83 year old woman was referred to our hospital in June 1999 for further examination and treatment of oesophageal tumour. Although a physical examination and laboratory data showed no significant abnormalities, endoscopic observation revealed two slightly elevated submucosal tu...
t(11;18)(q21;q21) is a specific chromosomal translocation associated with mucosa-associated lymphoid tissue (MALT) lymphoma. It fuses the amino terminal of the API2 gene to the carboxyl terminal of the MALT1 gene and generates a chimeric fusion product. Although the translocation is frequently detected in gastric and pulmonary MALT lymphoma, its incidence in MALT lymphomas from other sites is l...
Primary lymphomas of mucosa associated lymphoid tissue (MALT) are exceedingly rare. We report the case of a 51 year old female diagnosed with primary MALT lymphoma of the gallbladder after cholecystectomy. Further staging workup was negative for metastatic disease. When the disease is localized to the gallbladder, primary MALT lymphomas of the gallbladder carry an excellent prognosis, and surgi...
Neoplasm from the accessory parotid glands (APG) rarely occurs, and its malignancy rate is higher than other salivary glands. The B-cell lymphoma APG rare, with less 2% of all in APG. mucosa-associated lymphoid tissue (MALT) lymphoma, a subtype tends to be localized disease an indolent clinical course. It very rare for MALT develop bilaterally without autoimmune disease. A 43-year-old male pres...
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