title: Gastrointestinal lymphoma: where morphology meets molecular biology.
abstract: Primary gastrointestinal lymphomas are best exemplified by mucosa-associated lymphoid tissue (MALT) lymphoma of the stomach and enteropathy-type T-cell lymphoma (ETL). Both lymphomas were initially recognized on morphological grounds and their identification as distinct clinicopathological entities has subsequently been vindicated following integrated immunophenotypic, molecular, and cellular biological investigations. Delineation of the phenotypic, molecular, and biological properties of these lymphomas at various clinicopathological stages of their development has also provided critical information for the clinical management of patients with these diseases. Here, the histopathology and recent advances in phenotypic and molecular characterization of gastric MALT lymphoma and ETL and their applications in diagnosis and clinical management are reviewed.
authors.affiliation: Department of Histopathology, University College London, London WC1E 6JJ, UK. p.isaacson@ucl.ac.uk
authors.forename: Peter G
authors.initials: PG
authors.lastname: Isaacson
authors.forename: Ming-Qing
authors.initials: MQ
authors.lastname: Du
mesh_terms: D002869:Chromosome Aberrations; D003937:Diagnosis, Differential; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis / Q000235:genetics / Q000473:pathology*; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis / Q000235:genetics / Q000473:pathology*; D018442:Lymphoma, B-Cell, Marginal Zone / Q000235:genetics / Q000473:pathology; D013274:Stomach Neoplasms / Q000235:genetics / Q000473:pathology