title: Computed tomographic and magnetic resonance features of inflammatory myofibroblastic tumor of the lung in children.
abstract: We report two cases of inflammatory myofibroblastic tumor (IMT) of the lung in a 4-year-old boy and a 7-year-old girl. We performed dynamic contrastenhancement computed tomography in both of our cases and dynamic contrast enhancement magnetic resonance imaging (MRI) in one case. These dynamic studies showed a demarcated mass with delayed enhancement in both cases. A T1-weighted MR image shows a mass with homogeneous low signal intensity, and a T2- weighted image shows a mass with slightly high signal intensity. A post-contrast-enhanced T1-weighted image demonstrates homogeneous enhancement. We speculate that the delayed enhancement could be attributed to the abundant fibrous tissue, which was the main structural material of the tumor. This same finding has been described in previous reports of IMT in other organs.
authors.affiliation: Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan.
authors.forename: Yukihisa
authors.initials: Y
authors.lastname: Takayama
authors.forename: Hidetake
authors.initials: H
authors.lastname: Yabuuchi
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Soeda
authors.forename: Takashi
authors.initials: T
authors.lastname: Okafuji
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kamitani
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kinoshita
authors.forename: Naoya
authors.initials: N
authors.lastname: Kubokura
authors.forename: Shuji
authors.initials: S
authors.lastname: Sakai
authors.forename: Yoshinao
authors.initials: Y
authors.lastname: Oda
authors.forename: Masamitsu
authors.initials: M
authors.lastname: Hatakenaka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Honda
mesh_terms: D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D003937:Diagnosis, Differential; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D016726:Plasma Cell Granuloma, Pulmonary / Q000175:diagnosis* / Q000601:surgery; D035583:Rare Diseases; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA