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GI Lymphoma Clinical Pathologic and Molecular Features

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https://www.readbyqxmd.com/read/25639480/recent-advances-in-intestinal-lymphomas
#1
REVIEW
Periklis G Foukas, Laurence de Leval
A large variety of lymphoma types may develop as primary intestinal neoplasms in the small intestines or, less often, in the colorectum. Among these are a few entities such as enteropathy-associated T-cell lymphoma or immunoproliferative small intestinal disease that, essentially, do not arise elsewhere than in the gastrointestinal tract. In most instances the primary intestinal lymphomas belong to entities that also occur in lymph nodes or other mucosal sites, and may show some peculiar features. In the case of follicular lymphoma, important differences exist between the classical nodal cases and the intestinal cases, considered as a variant of the disease...
January 2015: Histopathology
https://www.readbyqxmd.com/read/24759013/-clinicopathological-characteristics-and-prognostic-analysis-of-92-cases-with-primary-gastrointestinal-diffuse-large-b-cell-lymphoma
#2
Jia Feng, Wei Wan, Wenli Wan, Jing Wang, Hongmei Jing, Jijun Wang, Wei Zhao, Yan Liu, Xiaoyan Ke
OBJECTIVE: To analyze the clinical and pathological features, molecular biological markers and prognosis of primary gastrointestinal diffuse large B-cell lymphoma (DLBCL). METHODS: A retrospective study was conducted in 92 cases of primary gastrointestinal DLBCL. The data of clinical characteristics, pathological and immunohistochemical features were analyzed. The relationship between different factors at diagnosis and prognosis were studied. RESULTS: Of the 92 patients, the male-female ratio was 1...
April 2014: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/23443141/gastrointestinal-b-cell-lymphomas-from-understanding-b-cell-physiology-to-classification-and-molecular-pathology
#3
Xavier Sagaert, Thomas Tousseyn, Rhonda K Yantiss
The gut is the most common extranodal site where lymphomas arise. Although all histological lymphoma types may develop in the gut, small and large B-cell lymphomas predominate. The sometimes unexpected finding of a lymphoid lesion in an endoscopic biopsy of the gut may challenge both the clinician (who is not always familiar with lymphoma pathogenesis) and the pathologist (who will often be hampered in his/her diagnostic skill by the limited amount of available tissue). Moreover, the past 2 decades have spawned an avalanche of new data that encompasses both the function of the reactive B-cell as well as the pathogenic pathways that lead to its neoplastic counterpart, the B-cell lymphoma...
December 15, 2012: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/21390139/primary-gastrointestinal-lymphoma
#4
REVIEW
Prasanna Ghimire, Guang-Yao Wu, Ling Zhu
Gastrointestinal tract is the most common extranodal site involved by lymphoma with the majority being non-Hodgkin type. Although lymphoma can involve any part of the gastrointestinal tract, the most frequent sites in order of its occurrence are the stomach followed by small intestine and ileocecal region. Gastrointestinal tract lymphoma is usually secondary to the widespread nodal diseases and primary gastrointestinal tract lymphoma is relatively rare. Gastrointestinal lymphomas are usually not clinically specific and indistinguishable from other benign and malignant conditions...
February 14, 2011: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/20306734/malignant-gastrointestinal-tumours-in-south-western-nigeria-a-histopathologic-analysis-of-713-cases
#5
F B Abdulkareem, F A Faduyile, A O Daramola, O Rotimi, A A F Banjo, S O Elesha, C C Anunobi, O R Akinde, E K Abudu
BACKGROUND: Malignant tumours of the gastro-intestinal tract are not as rare as previous studies suggest. Recent studies have indicated increasing incidence. OBJECTIVE: To document the pattern, age and sex distribution as well as histopathology characteristics of malignant tumours of the gastro-intestinal system in Lagos and Sagamu in Southwestern Nigeria. METHODS: The paraffin embedded blocks and slides as well as pathology reports of malignant tumours of the gastrointestinal (GIT) organs collected from five laboratories (Morbid Anatomy Departments of the Lagos University Teaching Hospital and Olabisi Onabanjo University Teaching Hospital in Sagamu, Ogun State as well as the three private histolopathology laboratories in Lagos State) were reviewed...
May 2009: West African Journal of Medicine
https://www.readbyqxmd.com/read/14649966/epstein-barr-virus-associated-peripheral-t-cell-lymphoma-with-gastrointestinal-tract-involvement
#6
Winyou Mitarnun, Vannarat Saechan, Jintana Pradutkanchana, Supaporn Suwiwat, Satomi Takao, Takafumi Ishida
Peripheral T-cell lymphoma (PTCL) is a group of diseases which are common in Asia and areas of South and Central America. They are highly associated with the Epstein-Barr virus (EBV) infection. In the present study the authors evaluated patients with gastrointestinal involvement of PTCL with respect to clinical findings and outcome, pathologic features, and molecular analysis for EBV infection and the clonality of tumor cells. From January 1997 through December 2000, 7 patients with gastrointestinal tract involvement of PTCL were identified...
September 2003: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
https://www.readbyqxmd.com/read/11962758/natural-killer-cell-malignancies-clinicopathologic-and-molecular-features
#7
REVIEW
L L P Siu, J K C Chan, Y L Kwong
Malignancies of natural killer (NK) cells have increasingly been recognized as distinct clinicopathological entities. The tumor cells are characterized by an immunophenotype of CD2+, surface CD3-, cytoplasmic CD3epsilon+, and CD56+. The T cell receptor gene is in germline configuration, and a consistent association with Epstein-Barr virus is demonstrable. Pathologically, the tumor cells show variable cytological appearances, with frequent angioinvasion and angiocentricity associated with zonal necrosis. Clinically, most cases affect the nasal cavity or other parts of the upper aerodigestive tract, and are referred to as nasal NK cell lymphoma...
April 2002: Histology and Histopathology
https://www.readbyqxmd.com/read/11812943/primary-follicular-lymphoma-of-the-gastrointestinal-tract-a-clinical-and-pathologic-study-of-26-cases
#8
Jinru Shia, Julie Teruya-Feldstein, Dorothy Pan, Abhijith Hegde, David S Klimstra, R S K Chaganti, Jing Qin, Carol S Portlock, Daniel A Filippa
Although the gastrointestinal tract represents the most common site of extranodal lymphoma, primary follicular lymphoma of the gastrointestinal tract is an uncommon and poorly defined disease. We report the clinical and pathologic features of 26 patients with primary gastrointestinal follicular lymphoma. Ten of 26 patients (38.5%) were stage IIE, and 16 patients (61.5%) were stage IE. Of the 26 patients, 13 were female and 13 were male. The age range was 26-81 years (median 54.5 years). Abdominal pain was the most common presenting symptom, seen in 12 of 24 patients (50%)...
February 2002: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/11782611/low-grade-follicular-lymphoma-of-the-small-intestine
#9
Matthew M Poggi, Peijie J Cong, C Norman Coleman, Elaine S Jaffe
BACKGROUND: Although the gastrointestinal tract is the most common site of extranodal non-Hodgkin's lymphoma (NHL), primary small intestine lymphomas remain relatively rare, especially localized low-grade follicular B-cell lymphomas. When lymphomas do occur at this site, most are high grade and require aggressive therapy. We report three cases of small intestinal follicular lymphoma diagnosed on endoscopic biopsy and review the clinical history, pathologic features, and treatment outcome...
February 2002: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/11710637/piffalls-in-diagnostic-molecular-pathology-significance-of-sampling-error
#10
E Heinm├Âller, B Renke, K Beyser, W Dietmaier, C Langner, J R├╝schoff
Today, molecular diagnostic tests are widely used in clinical medicine with polymerase chain reaction (PCR)-based techniques being of particular interest. In tissue specimens, however, false-positive and false-negative results can be obtained if pathomorphological and processing aspects are not considered. We therefore studied the impact of tissue sampling in three widely used diagnostic tests: (1) assessment of clonality in B-cell non-Hodgkin's lymphoma, (2) analysis of microsatellite instability (MSI) in colorectal neoplasia, and (3) demonstration of mycobacterium tuberculosis...
October 2001: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/11707830/pathologic-diagnosis-of-mantle-cell-lymphoma
#11
REVIEW
R Lai, L J Medeiros
Mantle cell lymphoma (MCL) is a clinicopathologic entity with distinctive morphologic and immunophenotypic features and a characteristic cytogenetic abnormality, the t(11;14)(q13;q32). Although MCL was recognized over 30 years ago, a lack of consensus regarding its morphologic features precluded its inclusion into non-Hodgkin's lymphoma (NHL) classification schemes until relatively recently. An accurate diagnosis of MCL is of great importance, since this tumor generally carries a poor prognosis and requires more aggressive and novel treatment regimens...
December 2000: Clinical Lymphoma
https://www.readbyqxmd.com/read/8478674/intermediate-lymphocytic-lymphoma-clinical-and-pathologic-features-of-a-recently-characterized-subtype-of-non-hodgkin-s-lymphoma
#12
REVIEW
R A Shivdasani, J L Hess, A T Skarin, G S Pinkus
PURPOSE: We present a comprehensive review of clinical, pathologic, molecular, and prognostic features and therapy of intermediate lymphocytic (mantle cell) lymphoma (ILL/MCL), a recently characterized subtype that represents 2% to 8% of non-Hodgkin's lymphomas (NHLs), but which has not been included in most classification schemes, including the International Working Formulation. DESIGN: The English-language literature encompassing the above aspects, published between 1977 and 1992, is critically reviewed...
April 1993: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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