undifferentiated embryonal sarcoma of the liver


undifferentiated embryonal sarcoma of the liver is a rare tumor, and considered as an aggressive neoplasm with very poor prognosis.


  • increasing fatigue
  • upper right quadrant pain 
  • abdominal mass 
  • fever
  • weight loss
  • anorexia malaise
  • lethargy
  • nausea
  • vomiting


Undifferentiated sarcoma of the liver is very rare and usually occurs in children during the first two decades of life. Embryonal sarcoma of the liver is a rapidly growing malignant tumor. The tumor is usually a single, large, variably hemorrhagic, necrotic, or cystic mass in the right lobe of the liver. 


Metastases that have been reported were the lung, bone, pleura, and peritoneum. 

The prognosis is generally poor although there have been some reports of five year survival and loval growth is a problem, particularly in cases in which the tumors have been completely resected. 



The treatment for embryonal sarcoma is surgical resection. Without the surgical resection, the mean survival period is less than one year and mortality is greater than 80%. The lesions are seldom resectionable and treatment with radiotherapy and chemotherapy have produced disappointing results.