title: Conversion of multiple solid testicular teratoma metastases to fatty and cystic liver masses following chemotherapy: CT evidence of "maturation".
abstract: Testicular germ cell tumour metastases may undergo "retroconversion" to mature differentiated teratoma following chemotherapy or irradiation. We report a patient with testicular germ cell liver metastases in whom computed tomography (CT) scans following chemotherapy demonstrated a reduction in CT attenuation of the liver lesions to that of cystic and fatty density. This is believed to represent CT evidence of liver metastasis "retroconversion", which offers the potential for non-invasive monitoring of histological progression.
authors.affiliation: Department of Clinical Radiology, Queen Elizabeth Hospital, Birmingham, West Midlands, UK.
authors.forename: S
authors.initials: S
authors.lastname: Connor
authors.forename: P
authors.initials: P
authors.lastname: Guest
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D003560:Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008068:Lipomatosis / Q000000981:diagnostic imaging* / Q000473:pathology; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000556:secondary; D008297:Male; D013724:Teratoma / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000556:secondary; D013736:Testicular Neoplasms / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000473:pathology*; D014057:Tomography, X-Ray Computed