title: The pleural sandwich sign in two cases of primary pleural lymphoma.
abstract: 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.
authors.affiliation: Department of Radiology, School of Medicine, Ewha Womans University, Seoul 158-710, Korea.
authors.forename: Yookyung
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Department of Radiology, School of Medicine, Ewha Womans University, Seoul 158-710, Korea.
authors.forename: Myungjae
authors.initials: M
authors.lastname: Lee
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Ewha Womans University, Seoul 158-710, Korea.
authors.forename: Yon Ju
authors.initials: YJ
authors.lastname: Ryu
authors.affiliation: Department of Pathology, School of Medicine, Ewha Womans University, Seoul 158-710, Korea.
authors.forename: Min-Sun
authors.initials: MS
authors.lastname: Cho
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D018951:Antigens, CD20 / Q000378:metabolism; D000970:Antineoplastic Agents / Q000627:therapeutic use; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis* / Q000188:drug therapy / Q000378:metabolism; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis*; D008297:Male; D010994:Pleura / Q000473:pathology*; D010997:Pleural Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D018951:Antigens, CD20; D000970:Antineoplastic Agents
keywords: Computed tomography; Lymphoma; Needle biopsy; Pleura