title: [A Case of Primary Splenic Inflammatory Myofibroblastic Tumor].
abstract: Inflammatory myofibroblastic tumor(IMT)is a rare neoplasm. IMTs are found in a number of locations throughout the body, but splenic involvement is uncommon. One case of splenic IMT is described. A 42-year-old woman presented with anterior chest pain and was found to have a splenic mass by computed tomography(CT). Fluorine-18-FDG-PET showed no FDG accumulation in the spleen. Magnetic resonance imaging(MRI)at 6 months follow-up showed an increase in the size of the tumor. We performed splenectomy for a suspected malignant tumor. The surgical specimen was a gray-white mass in the spleen. The mass was histopathologically diagnosed as primary splenic IMT because it consisted of desmin- and SMA-positive spindle-shaped cells with various inflammatory cells. In Japan, only 6 cases(including this case)of primary splenic IMT have been reported. Surgery is the only curative approach, but recurrences occur in around 5% of cases of pulmonary IMT, and around 25% of cases of extrapulmonary IMT. This patient needs to be carefully followed up.
authors.affiliation: Dept. of Gastrointestinal Surgery, Kanagawa Cancer Center.
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Atsumi
authors.forename: Masaaki
authors.initials: M
authors.lastname: Murakawa
authors.forename: Koichiro
authors.initials: K
authors.lastname: Yamaoku
authors.forename: Toru
authors.initials: T
authors.lastname: Aoyama
authors.forename: Amane
authors.initials: A
authors.lastname: Kanazawa
authors.forename: Akio
authors.initials: A
authors.lastname: Higuchi
authors.forename: Manabu
authors.initials: M
authors.lastname: Shiozawa
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kobayashi
authors.forename: Makoto
authors.initials: M
authors.lastname: Ueno
authors.forename: Manabu
authors.initials: M
authors.lastname: Morimoto
authors.forename: Kota
authors.initials: K
authors.lastname: Washimi
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Yokose
authors.forename: Naoto
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Oshima
authors.forename: Norio
authors.initials: N
authors.lastname: Yukawa
authors.forename: Takaki
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Rino
authors.forename: Munetaka
authors.initials: M
authors.lastname: Masuda
authors.forename: Soichiro
authors.initials: S
authors.lastname: Morinaga
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D064847:Multimodal Imaging; D009379:Neoplasms, Muscle Tissue / Q000000981:diagnostic imaging* / Q000601:surgery; D049268:Positron-Emission Tomography; D013156:Splenectomy; D013160:Splenic Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed