Primary extragonadal retroperitoneal pure yolk sac tumor
The Internet Journal of Urology(2008)
摘要
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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关键词
tumor
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