title: Two cases of sclerosing angiomatoid nodular transformation of the spleen with gradual growth: usefulness of diffusion-weighted imaging.
abstract: Sclerosing angiomatoid nodular transformation (SANT) is a recently recognized and rare, nonneoplastic lesion of the spleen. Some papers have reported an increased SANT diameter during the follow-up period. We present two cases of SANT whose size increased during the follow-up period. Diffusion-weighted magnetic resonance imaging (DWI) findings correlated well with the pathological findings of SANT, the multinodular high-intensity area as the angiomatoid nodules and the peripheral low-intensity area as fibrous tissues. Therefore, DWI may be a useful imaging tool.
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Nobutaka
authors.initials: N
authors.lastname: Yoshimura
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan. Electronic address: saito-k@tokyo-med.ac.jp.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Saito
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Natsuhiko
authors.initials: N
authors.lastname: Shirota
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Kunihito
authors.initials: K
authors.lastname: Suzuki
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Soichi
authors.initials: S
authors.lastname: Akata
authors.affiliation: Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Oshiro
authors.affiliation: Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Toshitaka
authors.initials: T
authors.lastname: Nagao
authors.affiliation: Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Sugimoto
authors.affiliation: Department of Surgery, Tokyo Medical University, Tokyo, Japan.
authors.forename: Akihiko
authors.initials: A
authors.lastname: Tsuchida
authors.affiliation: Department of Radiology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Koichi
authors.initials: K
authors.lastname: Tokuuye
mesh_terms: D038524:Diffusion Magnetic Resonance Imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D035583:Rare Diseases / Q000473:pathology / Q000601:surgery; D013154:Spleen / Q000473:pathology* / Q000601:surgery; D013156:Splenectomy; D013158:Splenic Diseases / Q000473:pathology* / Q000601:surgery
keywords: Diffusion-weighted imaging; Magnetic resonance imaging; Sclerosing angiomatoid nodular transformation; Spleen