title: Secondary Extramedullary Plasmacytoma of the Duodenum: An Unusual Endoscopic Presentation.
abstract: We describe an unusual case (a 79-year-old woman) of secondary extramedullary plasmacytoma (EMP) involving the duodenum. While all the previously reported cases of duodenal involvement by EMP (namely 20 cases) were characterized by the presence of ulcerative masses or ischemic necrotic lesions, in our case EMP led to the unusual finding of several non-polypoid lesions with a depressed central area. The final diagnosis was multiple myeloma IgA lambda, stage II A, with secondary duodenal EMP. To our knowledge this is the first report showing duodenal involvement by EMP with the aspect of multiple non-polypoid lesions.
authors: Department of Clinical and Experimental Medicine, Gastroenterology Unit, Second University of Naples, Italy; These authors contributed equally to this work.
authors: Antonietta Gerarda
authors: AG
authors: Gravina
authors: Department of Clinical and Experimental Medicine, Gastroenterology Unit, Second University of Naples, Italy; These authors contributed equally to this work.
authors: Alessandro
authors: A
authors: Federico
authors: Onco-Hematology Units, Second University of Naples, Italy.
authors: Antonello
authors: A
authors: Sica
authors: Department of Bio-morphological and Functional Sciences, University "Federico II" of Naples, Italy.
authors: Francesco Paolo
authors: FP
authors: D'Armiento
authors: Onco-Hematology Units, Second University of Naples, Italy.
authors: Maria Giovanna
authors: MG
authors: Ferrara
authors: Onco-Hematology Units, Second University of Naples, Italy.
authors: Umberto
authors: U
authors: Falcone
authors: Department of Clinical and Experimental Medicine, Gastroenterology Unit, Second University of Naples, Italy.
authors: Marcello
authors: M
authors: Dallio
authors: Internal Medicine, Second University of Naples, Italy.
authors: Domenico
authors: D
authors: Cozzolino
authors: Onco-Hematology Units, Second University of Naples, Italy.
authors: Salvatore
authors: S
authors: Guastafierro
authors: Department of Clinical and Experimental Medicine, Gastroenterology Unit, Second University of Naples, Italy.
authors: Carmela
authors: C
authors: Loguercio
authors: Department of Clinical and Experimental Medicine, Gastroenterology Unit, Second University of Naples, Italy.
authors: Marco
authors: M
authors: Romano
keywords: Diagnosis; Duodenum; Extramedullary plasmacytoma