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  • Title: [Inflammatory pseudotumor of the prostate: a case report].
    Author: Kuramoto T, Kohjimoto Y, Mori T, Kikkawa K, Senzaki H, Hagino K, Uekado Y, Shinka T.
    Journal: Hinyokika Kiyo; 2005 Nov; 51(11):767-70. PubMed ID: 16363712.
    Abstract:
    We report a rare case of inflammatory pseudotumor of the prostate. A 42-year-old man with a history of hematospermia and chronic prostatitis presented with difficulty in voiding. Cystoscopy demonstrated a large non-papillary tumor occupying the prostatic urethra along with two bladder stones. Magnetic resonance imaging (MRI) demonstrated a 7-cm prostatic mass protruding toward the bladder and the rectum. Transrectal biopsy of the prostate demonstrated a fibrous lesion containing inflammatory cells without evidence of malignancy. We performed transurethral resection of the prostatic lesion to release the bladder outlet obstruction, followed by cystolithotripsy. Histopathological examination of the surgical specimen demonstrated a benign fibromuscular lesion with spindle cell proliferation, leading to a diagnosis of inflammatory pseudotumor. Postoperatively, the patient voided normally without any signs of recurrence on follow-up at five months. Inflammatory pseudotumor is an unusual benign lesion of unknown etiology. Only 10 previous cases of the disease involving the prostate have been reported in English and Japanese literature. Prostatic involvement of inflammatory pseudotumor may show a presentation similar to malignant prostatic sarcoma. Thus, accurate identification of this benign process is important in order to avoid unnecessary radical surgery.
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