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Contemporary Approach to the Diagnosis and Classification of Intestinal T-cell Lymphomas.
Hum Pathol
January 2025
Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. Electronic address:
We provide an overview of recent advances in the diagnosis and classification of intestinal T- and NK-cell lymphomas and lymphoproliferative disorders that primarily involve the gastrointestinal (GI) tract. It should be mentioned that systemic T- and NK-cell lymphomas can present initially in the GI tract but are not the focus of this review. Here, we focus on the clinical and pathologic findings of enteropathy-associated T-cell lymphoma, monomorphic epitheliotropic intestinal T-cell lymphoma, intestinal T-cell lymphoma not otherwise specified, indolent T-cell lymphoproliferative disorder of the GI tract and indolent NK-cell lymphoproliferative disorder of the GI tract (previously known as NK-cell enteropathy).
View Article and Find Full Text PDFActivated CD27PD-1 CD8 T Cells and CD4 T Regulatory Cells Dominate the Tumor Microenvironment in Refractory Celiac Disease Type II.
Gastro Hep Adv
September 2024
Department of Immunology, Leiden University Medical Center, Leiden, the Netherlands.
Background And Aims: Refractory celiac disease type II (RCDII) is characterized by a clonally expanded aberrant cell population in the small intestine. The role of other tissue-resident immune subsets in RCDII is unknown. Here, we characterized CD8 and CD4 T cells in RCDII duodenum at the single-cell level and .
View Article and Find Full Text PDFIntroduction: Enteropathy-associated T-cell lymphoma (EATL) is a peripheral T-cell lymphoma (PTCL) with a poor prognosis. Cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) with or without etoposide consolidated by autologous stem cell transplantation (ASCT) are recommended for fit PTCL patients. The role of etoposide and ASCT in EATL is unclear.
View Article and Find Full Text PDFCoeliac disease (CD) is an immune-mediated condition that causes damage to the small intestine upon gluten consumption by genetically susceptible individuals. To determine whether there is an active coeliac disease or the presence of additional pathologies, patients must undergo regular evaluations, including repeat endoscopy. In this analysis, we present a case study of a 75-year-old woman from England who was diagnosed with coeliac disease later in life.
View Article and Find Full Text PDFA Case of Abscessing Ileocecal Monomorphic Epitheliotropic Intestinal T-cell Lymphoma.
Cureus
October 2024
General and Clinical Pathology, Forensic Medicine and Deontology, Dr. Marko Markov Specialized Hospital for Treatment of Oncological Diseases, Varna, BGR.
Monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), previously referred to as enteropathy-associated T-cell lymphoma (EATL) type II, is a rare type of intestinal extranodal T-cell lymphoma that arises from intraepithelial T-lymphocytes of the intestinal mucosa. Here, we report a case of MEITL with an unusual localization in the ileocecal region complicated by an adjacent abscess and perforation of colon ascendens in a 65-year-old male. The patient was admitted to the hospital with acute abdominal pain.
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