1 İzmir Tepecik Eğitim ve Araştırma Hastanesi, Üroloji Kliniği, İzmir
2 T.C.S.B İzmir Katip Çelebi Üniversitesi Atatürk Eğitim ve Araştırma Hastanesi, Üroloji Kliniği, İzmir
3 Haccetepe Üniversitesi Tıp Fakültesi, Üroloji Ana Bilim Dalı, Ankara
The retroperitoneal cysts which have me-sothelial origin are very rare. Surgery is the standard method for definitive diagnosis and treatment of retroperitoneal cysts At the time of diagnosis it is difficult to seperate from other retroperitoneal masses. Ten-year-old girl was operated with the diagnosis of left nonfuncti-onal hydronephrotic kidney. In macroscopic examination at the edge of the cyst about 2 cm of tissue was hypoplastic kidney. In histopatho-logical examination, cyst wall was paved with a single row of cubical epithelium and immu-nohistochemically cytoceratin 7(+), WT-1(+), calretinin (+) was detected and the cyst was di-agnosed as mesothelial cyst. Two centimeters kidney tissue was assessed in accordance with hypoplasic kidney.Here we present a case of pri-mary retroperitoneal mesothelial cyst, which is very rare in the literature.
Key Words: Mesothelial; cyst; retroperito-neum
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