The pleural sandwich sign in two cases of primary pleural lymphoma

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The sandwich sign is used to describe mesenteric lymphoma in which mesenteric vessels and fat are enveloped by enlarged mesenteric lymph nodes. We present two cases of primary pleural lymphoma demonstrating the “pleural sandwich sign”. Contrast-enhanced computed tomography showed conglomerated parietal pleural and extrapleural masses encasing the intercostal arteries. Histopathological examinations confirmed low grade marginal zone B-cell lymphoma in an 80-year-old man and diffuse large B-cell lymphoma in a 68-year-old man. The pleural sandwich sign may suggest the diagnosis of primary pleural lymphoma.

Original languageEnglish
Pages (from-to)213-216
Number of pages4
JournalKorean Journal of Radiology
Issue number1
StatePublished - 1 Jan 2015


  • Computed tomography
  • Lymphoma
  • Needle biopsy
  • Pleura


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