ORIGINAL ARTICLE
PRIMARY EXTRAGONADAL RETROPERITONEAL PURE YOLK SAC TUMOR
 
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1
Fatih University, School of Medicine, Department of Urology, Ankara, Turkey
 
2
Fatih University, School of Medicine, Department of Pathology, Ankara, Turkey
 
3
Gazi University, School of Medicine, Department of Urology, Ankara, Turkey
 
 
Online publication date: 2008-10-15
 
 
Publication date: 2008-10-15
 
 
Corresponding author
Ömer Bayrak   

Assistant Professor in Urology, Fatih University, School of Medicine, Hosdere Cd. No: 145, 06540, Y. Ayrancı, Ankara, Turkey Phone: 903124400606 Fax: 903124415498
 
 
Eur J Gen Med 2008;5(4):239-241
 
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ABSTRACT
We describe a rare case of an extragonadal retroperitoneal pure yolk sac (endodermal sinus) tumor in the paraaortic region. Radiologic investigation, which included abdominal ultrasound ,computed tomography (CT), and magnetic resonance imaging (MRI) showed a large soft tissue mass occupying the inter paraaortic, renal, pancreatic and splenic region. Radionuclide bone scans demonstrated no bone metastases. The serum alpha fetoprotein (α-FP) level was high; however β-HCG was normal. Pathologic examination of the surgical specimen showed extragonadal yolk sac tumor. After postoperative chemotherapy, follow-up CT revealed decreased residual tumoral tissues and α-FP level returned to normal.
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