en Radiation Biology Radiation Biology مطالعه موردي Case Report <div style="text-align: justify;">Neurofibroma of the prostate is an extremely rare benign tumor, particularly when it is not associated with neurofibromatosis-I (NF-1). This study aimed to report the case of a 44-year-old man who presented with dysuria for about 4 years. Magnetic resonance imaging (MRI) showed a mass in the prostate with &ldquo;target sign&rdquo; on T2-weighted imaging. The mass was surgically excised, and histopathological findings revealed a neurofibroma. No clinical or laboratorial manifestations of NF-1 were identified. Also, no local recurrence occurred after the 3-month follow-up. This was the first case of prostate solitary neurofibroma without NF-1, and the &ldquo;target sign&rdquo; on MRI could supply some significant implications in the diagnosis.</div> Neurofibroma, Prostate tumor, Solitary, Magnetic resonance imaging. 509 513 http://ijrr.com/browse.php?a_code=A-10-1-811&slc_lang=en&sid=1 Q.J. Qu 7900319475328460014328 7900319475328460014328 No Department of medical imaging, Shanxi Medical University, Xinjian Road, Taiyuan 030001, Shanxi Province, China Y. Tan 7900319475328460014329 7900319475328460014329 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 H. Zhang zhanghui_mr@163.com 7900319475328460014330 7900319475328460014330 Yes Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 X.C. Wang 7900319475328460014331 7900319475328460014331 No Department of medical imaging, Shanxi Medical University, Xinjian Road, Taiyuan 030001, Shanxi Province, China J.B. Qin 7900319475328460014332 7900319475328460014332 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 L. Wang 7900319475328460014333 7900319475328460014333 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 L. Zhang 7900319475328460014334 7900319475328460014334 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 X.F. Wu2 7900319475328460014335 7900319475328460014335 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 l.N. Li 7900319475328460014336 7900319475328460014336 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361 X. Liang 7900319475328460014337 7900319475328460014337 No Department of MRI, First Hospital of Shanxi Medical University, Jiefang Road, Taiyuan 030001, Shanxi Province, China, Phone Number: (0351)4639361