title: Inflammatory myofibroblastic tumor of the urinary bladder with benign pelvic lymph node enlargement: a case report.
abstract: Inflammatory myofibroblastic tumors (IMTs) rarely occur in the urinary bladder. It is apparently difficult to distinguish these tumors from other malignant spindle cell proliferations. Herein, we report a case of IMT of the urinary bladder with enlarged pelvic lymph nodes. The definitive pathological diagnosis could not be established by biopsy. Instead, the diagnosis of IMT of the urinary bladder was determined by a positive reaction to anaplastic lymphoma kinase by immunohistochemistry after radical cystectomy. No malignant findings were observed on histopathological evaluations of the enlarged lymph nodes.
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Machioka
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors.forename: Yasuhide
authors.initials: Y
authors.lastname: Kitagawa
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors.forename: Kouji
authors.initials: K
authors.lastname: Izumi
authors.affiliation: Division of Pathology, Kanazawa University Hospital, Kanazawa University, Kanazawa, Japan.
authors.forename: Seiko
authors.initials: S
authors.lastname: Kitamura
authors.affiliation: Division of Pathology, Kanazawa University Hospital, Kanazawa University, Kanazawa, Japan.
authors.forename: Hiroko
authors.initials: H
authors.lastname: Ikeda
authors.affiliation: Department of Integrative Cancer Therapy and Urology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors.forename: Mikio
authors.initials: M
authors.lastname: Namiki
keywords: Inflammatory myofibroblastic tumor; Lymph node swelling; Urinary bladder