title: Imaging of primary liver carcinosarcoma scintigraphically; a case report.
abstract: Primary liver carcinosarcoma is a very rare disease. There have been only a few cases described to date, none of which has been imaged by bone scintigraphy. A 69-year-old man who developed right back pain and weight loss was admitted to our hospital. Tenderness of the right upper abdomen, hepatomegaly, and a giant mass were the main physical examination signs. Abdominal ultrasonography showed a large lobulated heterogeneous echogenic solid mass with multiple cystic areas of varying size and a highly echogenic region that had posterior acoustic shadowing within the mass in the right lobe of the liver. Labeled erythrocyte imaging and (99m)Tc-nanocolloid liver-spleen scan were performed to exclude hemangioma, showing a large intrahepatic photon deficient area. (99m)Tc-methylene diphosphonate (MDP) bone scintigraphy revealed heterogeneous, irregular and dense activity accumulation thought to be osteoblastic activity in the liver mass. Postsurgical pathological diagnosis revealed "carcinosarcoma".
  
  
  BACKGROUND
  None declared.
authors.affiliation: Erciyes University School of Medicine, Department of Nuclear Medicine, Kayseri, Turkey.
authors.forename: Ummühan
authors.initials: U
authors.lastname: Abdulrezzak
authors.affiliation: Erciyes University School of Medicine, Department of Nuclear Medicine, Kayseri, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Kula
authors.affiliation: Erciyes University School of Medicine, Department of Nuclear Medicine, Kayseri, Turkey.
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Erdoğan
authors.affiliation: Erciyes University School of Medicine, Department of Nuclear Medicine, Kayseri, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Tutuş
keywords: bone formation; liver neoplasms; scintigraphy