1 Atlas University, Medicine Hospital, Department of Urology, Istanbul, Turkey
2 Atlas University, Medicine Hospital, Department of Radiology, Istanbul, Turkey
3 Marmara University Medical Faculty, Department of Urology, Istanbul, Turkey
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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