Tehran University of Medical Sciences International Journal of Hematology-Oncology and Stem Cell Research 2008-2207 5 3 2011 09 15 0 0 Mehrdad Payandeh Medical Biology Research Center, Kermanshah University of Medical Science (KUMS), Kermanshah, Iran Mehrnosh Aeinfar Medical Biology Research Center, Kermanshah University of Medical Science (KUMS), Kermanshah, Iran Mohammad Erfan Zare Medical Biology Research Center, Kermanshah University of Medical Science (KUMS), Kermanshah, Iran Mohammad Ali Hessami Department of Surgical Oncology, Kermanshah University of Medical Science (KUMS), Kermanshah, Iran Abolghasem Mirbahary Department of Pathology, Kermanshah University of Medical Science (KUMS), Kermanshah, Iran 2015 10 01 Ganglioneuromas presented as a retroperitoneal tumor around the vital organs is a rare entity. A case with unusual presentation is reported. Young woman of 44 years old presented without any complaint ,that known during incidental abdominopelvic ultrasonography. It was treated with partial resection for debulking surgery. Debulking surgery with preservation of organ functions is feasible in these slow growing tumors for better quality of life. https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/view/287 https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/download/287/280