title: Gastrointestinal dissemination of mucosa-associated lymphoid tissue lymphoma: computed tomographic findings.
abstract: OBJECTIVE
  To describe the computed tomographic findings of mucosa-associated lymphoid tissue (MALT) lymphoma with gastrointestinal (GI) tract dissemination.
  
  
  METHODS
  We retrospectively reviewed the computed tomographic findings for the location, morphology, contrast enhancement, and continuity of the involved bowel segment with ancillary findings in 10 patients with MALT lymphoma involving multiple GI tracts.
  
  
  RESULTS
  MALT lymphoma involved a total of 31 bowel segments. The gastric lesions appeared as segmental (n = 4) or diffuse (n = 1) wall thickening and the small- or large-intestinal lesions as circumferential wall thickening (n = 11) or localized polypoid mass (n = 8) with homogeneous and isoattenuating or hypoattenuating enhancement. Continuity of the involved bowel segment was present in 6 patients, bowel perforation in 1, lymphadenopathy in 8, and hepatosplenomegaly in 4.
  
  
  CONCLUSIONS
  Despite its rarity, MALT lymphoma can disseminate into the GI tract in the form of circumferential bowel wall thickening or localized polypoid mass with or without gastric involvement.
authors.affiliation: Department of Radiology, College of Medicine, University of Ulsan, Seoul, Korea.
authors.forename: Hye Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Hyun Kwon
authors.initials: HK
authors.lastname: Ha
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Jeong-Sik
authors.initials: JS
authors.lastname: Byeon
authors.forename: Mi-Jung
authors.initials: MJ
authors.lastname: Kim
authors.forename: Seung Soo
authors.initials: SS
authors.lastname: Lee
authors.forename: Seong Ho
authors.initials: SH
authors.lastname: Park
authors.forename: Ah Young
authors.initials: AY
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011857:Radiographic Image Interpretation, Computer-Assisted; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*