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  • Title: A para-testicular primitive neuroectodermal tumor in an adult: a case report and literature review.
    Author: Cohen DD, Zorn K, Bernard C, Rajan R, Kuzmarov IW.
    Journal: Can J Urol; 2000 Aug; 7(4):1081-4. PubMed ID: 11109079.
    Abstract:
    OBJECTIVE: The authors describe the salient clinical, radiologic and histopathologic features of an extremely rare para-testicular primitive neuroectodermal tumor in a 25 year-old man. INTERVENTION: Excisional biopsy of the tumor en bloc was performed. Adjuvant VAdriaC-based chemotherapy (Vincristine, Doxorubicin, and Cyclophosphamide) was given post-operatively. MAIN OUTCOME MEASURES: Histopathologic examination and immunohistochemical studies were performed on formaldehyde-fixed, paraffin-embedded tumor tissue. RESULTS: Histologic examination showed an undifferentiated small cell tumor. The tumor cells stained positively with MIC-2, a marker specific for primitive neuroectodermal tumors. The patient is 12 months post surgery and has completed adjuvant chemotherapy with no evidence of recurrent disease. CONCLUSIONS: This highly unusual, peripheral primitive neuroectodermal tumor should be considered in the differential diagnosis of undifferentiated small cell neoplasms of the genitourinary system in adults, from the kidney to the testicle. We present a patient with a PNET treated based on a Ewing's family of tumors protocol.
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