Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Primary undifferentiated embryonal sarcoma of the liver mistaken for hydatid disease | Faraj et al. World Journal of Surgical Oncology 2010 8 58 http content 8 1 58 WORLD JOURNAL OF SURGICAL ONCOLOGY CASE REPORT Open Access Primary undifferentiated embryonal sarcoma of the liver mistaken for hydatid disease 1 2 2 2 1 1 Walid Faraj Deborah Mukherji Nadim El Majzoub Ali Shamseddine Achraf Shamseddine Mohamed Khalife Abstract Primary undifferentiated embryonal sarcoma of the liver is a rare tumor with a peak incidence between the ages of 6 and 10 years. We report a case of a primary hepatic undifferentiated embryonal sarcoma arising in a 21-year-old male mistaken for hydatid disease of the liver. The rapid recurrence of this tumor along the site of attempted percutaneous drainage illustrates some important management points regarding this malignancy. Introduction Primary undifferentiated embryonal sarcoma UES of the liver is a rare and highly malignant neoplasm of mesenchymal origin. The majority of primary hepatic malignancies are carcinomas with primary hepatic sarcomas representing between and 2 of primary hepatic cancers 1 . UES of the liver is most commonly seen arising in children with a peak incidence between 6 and 10 years but can arise in adults 2 . Our institution is a leading tertiary referral centre for the treatment of hepatic malignancies in the region. From 1998 to 2009 215 adult patients were diagnosed with primary hepatic malignancies at our institution 4 of which were diagnosed with primary hepatic sarcoma . Three cases were primary hepatic leiomyosarcomas LMS and one case was primary UES of the liver mistaken for hydatid disease in a 21-year-old male patient. Hydatid disease is endemic in the Middle East and is top of the differential diagnosis for a cystic liver lesion presenting in this age group. Case Report A 21 year old male patient was referred to our institution following unsuccessful surgery for presumed hydatid disease of the right lobe of the liver. The initial operation was performed in a district .
