title: Ewing's sarcoma metastatic to focal nodular hyperplasia of liver.
abstract: A case is presented of a young woman discovered at thoracotomy to have Ewing's sarcoma of the left lower ribs with soft tissue extension to the diaphragm and thoracic wall. Laparotomy at the same operation showed a nodule of focal nodular hyperplasia of the liver with a focus of metastasis from the sarcoma within the area of hyperplasia. This is the first report of metastasis of any tumor to a hepatic lesion of this sort. Possible reasons for metastasis to this type of lesion are discussed.
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000473:pathology / Q000556:secondary*; D012272:Ribs; D012512:Sarcoma, Ewing / Q000473:pathology* / Q000556:secondary / Q000601:surgery