title: Double Extramedullary Plasmacytoma of the Stomach with a Long-term Endoscopic Follow-up.
abstract: A 56-year-old woman was referred to our hospital with a growing gastric submucosal tumor. An upper endoscopic examination revealed two gastric tumors, an original polypoid tumor and a newly diagnosed superficial tumor. Boring biopsied specimens of the submucosal tumor showed gastric plasmacytoma; however, the other specimens showed no malignancy. Blood diseases were ruled out using various examinations; therefore, we diagnosed the tumor as extramedullary gastric plasmacytoma. The patient underwent laparoscopic distal gastrectomy, and both tumors were thus revealed to be plasmacytomas. We experienced a rare case with two differently shaped extramedullary gastric plasmacytomas without significant morphologic change during the follow-up.
authors.affiliation: The Center for Digestive Diseases, KKR Sapporo Medical Center Tonan Hospital, Japan.
authors.forename: Ayako
authors.initials: A
authors.lastname: Doi
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Sumiyoshi
authors.forename: Yuko
authors.initials: Y
authors.lastname: Omori
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Oyamada
authors.forename: Koki
authors.initials: K
authors.lastname: Kumano
authors.forename: Naohito
authors.initials: N
authors.lastname: Yoshizaki
authors.forename: Michiaki
authors.initials: M
authors.lastname: Hirayama
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Syunichi
authors.initials: S
authors.lastname: Okushiba
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kogawa
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Doi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Kondo
mesh_terms: D016099:Endoscopy, Gastrointestinal; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy; D006801:Humans; D010535:Laparoscopy; D008875:Middle Aged; D010954:Plasmacytoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D035583:Rare Diseases; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome