%0 Journal Article
%T Retroperitoneal Leiomyosarcoma Associated with an Elevated ¦Â-HCG Serum Level Mimicking Extragonadal Germ Cell Tumor
%A Michael Froehner
%A Hans-Juergen Gaertner
%A Andreas Manseck
%A Sven Oehlschlaeger
%A Manfred P. Wirth
%J Sarcoma
%D 2000
%I Hindawi Publishing Corporation
%R 10.1155/2000/501959
%X Patient. A 65-year-old man was admitted with a large primary retroperitoneal tumor and an increased β-human chorionic gonadotropin (β-HCG) serum level. A germ cell tumor was suspected; however, a computed tomography-guided biopsy failed to enable tumor classification. After two courses of chemotherapy, the β-HCG serum level had returned to the normal level and a diagnostic laparotomy with incisional biopsy was performed. The immunohistochemical examination of the specimen identified the tumor as a retroperitoneal pleomorphic leiomyosarcoma.
%U http://www.hindawi.com/journals/srcm/2000/501959/abs/