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  • Title: [Inflammatory pseudotumor of the bladder: a new case report].
    Author: Benchekroun A, el Alj HA, Essayegh H, Zannoud M, Benslimane L, Marzouk M, Mahassini F, Faik M.
    Journal: Ann Urol (Paris); 2003 Jun; 37(3):105-7. PubMed ID: 12872598.
    Abstract:
    Inflammatory pseudotumor is a reactive benign lesion which can be very difficult to distinguish from some malignant bladder tumors like sarcomas or sarcomatoid carcinoma. Inflammatory pseudotumour (IPT) of the urinary bladder is a benign proliferate lesion which can simulate clinically and histologically a sarcoma. A case of an inflammatory pseudotumor of the urinary bladder in a 18-years-old man is presented. This patient presented with sudden onset of gross painless hematurial related to large polypoid and ulcerated bladder masses found on endoscopy. Initial pathological analysis was interpreted as rhabdomyosarcoma but subsequent reviews were consistent with a benign process resembling nodular fasciitis. This rare, benign and presumed non-neoplastic, reactive lesion must be differentiated from sarcomas of the urinary bladder. Immunohistochemistry seems to be the method of election in differentiating inflammatory pseudo-tumor from other spindle cell proliferations of the bladder. When diagnosis is certain, complete transurethral resection is the treatment of choice. However, if there is no total pathologic confirmation, if it is a very wide lesion or if it is recurring after endoscopic resection, a partial cystectomy is suggested.
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