• Sao Paulo Med J · Sep 2018

    Case Reports

    Inflammatory myofibroblastic tumor of the prostate after transurethral resection of the prostate with negative expression of anaplastic lymphoma kinase: a case report.

    • Jie Zeng, Rong-Quan He, Wei-Guang Mo, Zhi-Gang Peng, Jie Ma, Jin-Cai Zhong, Chao-Hua Mo, Mei-Jiao Qin, and Xiao-Hua Hu.
    • MD, MSc. Postgraduate Student, Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
    • Sao Paulo Med J. 2018 Sep 1; 136 (5): 484487484-487.

    ContextInflammatory myofibroblastic tumors are a rare type of soft-tissue tumor. Inflammatory myofibroblastic tumors are characterized by rearrangements involving the anaplastic lymphoma kinase gene locus on 2p23.Case ReportWe report the case of a 67-year-old Chinese male who presented with dysuria and fever. Magnetic resonance imaging showed an irregular prostatic mass with an isointense signal and obscure boundary. Histopathological evaluation showed that the mass consisted mainly of spindle-shaped cells. Immunohistochemical evaluation showed that the tumor cells were negative for anaplastic lymphoma kinase.ConclusionsInflammatory myofibroblastic prostate tumors are rare lesions with unclear etiology. The pathological diagnosis is very important.

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