title: Multi-organ disseminated mucosa-associated lymphoid tissue lymphoma.
abstract: A 61-year-old man was admitted to our hospital with extreme weight loss. Abdominal ultrasonography revealed an 8-cm tumor of the pancreatic head. Further investigation revealed orbital, pulmonary, pancreatic, colonic, and bone marrow lesions. A histopathological examination of the pancreatic tumor specimen obtained using endoscopic ultrasound-guided fine-needle aspiration revealed mucosa-associated lymphoid tissue (MALT) lymphoma. Monoclonal rearrangement of immunoglobulin heavy chain was found in the pulmonary, pancreatic, colonic, and bone marrow lesions. We diagnosed multi-organ disseminated MALT lymphoma, with the largest lesion located in the pancreatic head. Chemo-radiation therapy resulted in complete remission.
authors.affiliation: Department of Gastroenterology, Hakodate Municipal Hospital.
authors.forename: Hirohito
authors.initials: H
authors.lastname: Naruse
authors.forename: Ikko
authors.initials: I
authors.lastname: Tanaka
authors.forename: Masataka
authors.initials: M
authors.lastname: Yagisawa
authors.forename: Taiki
authors.initials: T
authors.lastname: Kudo
authors.forename: Masahiro
authors.initials: M
authors.lastname: Horimoto
authors.forename: Keiko
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Kazuteru
authors.initials: K
authors.lastname: Hatanaka
authors.forename: Yoshiya
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Norihiko
authors.initials: N
authors.lastname: Shimoyama
mesh_terms: D061765:Endoscopic Ultrasound-Guided Fine Needle Aspiration; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000473:pathology*; D008297:Male; D008875:Middle Aged