title: Atypical mucosa-associated lymphoid tissue lymphoma in the transverse colon associated with macroglobulinemia.
abstract: We herein present a quite atypical case of primary gastrointestinal mucosa-associated lymphoid tissue (MALT) lymphoma in the transverse colon. Computed tomography and endoscopic ultrasonography revealed diffuse thickening of the wall, and colonoscopy showed a white-colored mucosa with reduced superficial vessels in the entire transverse colon. The lesion was diagnosed as MALT lymphoma by pathological examination of the biopsied specimen. Secondary macroglobulinemia of IgM-kappa type was also found in the present case. After chemotherapy and radiation, the lesions in the transverse colon improved and the patient has been in good condition without any evidence of recurrence for more than 1 year.
authors.affiliation: Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa. ikuta@asahikawa-med.ac.jp
authors.forename: Katsuya
authors.initials: K
authors.lastname: Ikuta
authors.forename: Mikihiro
authors.initials: M
authors.lastname: Fujiya
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Ueno
authors.forename: Takaaki
authors.initials: T
authors.lastname: Hosoki
authors.forename: Kentaro
authors.initials: K
authors.lastname: Moriichi
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Honda
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Torimoto
authors.forename: Toshiko
authors.initials: T
authors.lastname: Yamochi
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Ota
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kohgo
mesh_terms: D044684:Colon, Transverse / Q000473:pathology / Q000601:surgery; D003110:Colonic Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008875:Middle Aged; D008258:Waldenstrom Macroglobulinemia / Q000150:complications / Q000175:diagnosis* / Q000601:surgery