title: A case of an intra-atrial tumor thrombus from hepatocellular carcinoma (HCC), first indicated by 67Ga-citrate scintigraphy.
abstract: We encountered a very rare case of an intra-atrial tumor thrombus from hepatocellular carcinoma (HCC). Conventional XCT and US gave evidence of HCC. In nuclear medicine studies performed incidentally, the first study with 99mTc-phytate liver scintigraphy showed 2 SOLs and evidence of chronic liver disease, and the second study with 67Ga-citrate scintigraphy demonstrated 2 hot lesions within the liver parenchyma, and also another unexpected hot area just above the left lobe of the liver, seemingly beyond the diaphragm. When echocardiography was performed, in addition to ECG, because the patient began to complain of dyspnea, an oblong mass lesion was detected within the right atrium. Reexamination with XCT and angiography clearly proved the existence of an intraatrial tumor thrombus. These results indicate the need for routine examination by echocardiography for HCC patients complaining of dyspnea.
authors.affiliation: Department of Radiology, Sakura Hospital, Toho University, School of Medicine, Chiba, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Noguchi
authors.forename: M
authors.initials: M
authors.lastname: Muto
authors.forename: H
authors.initials: H
authors.lastname: Yanagidaira
authors.forename: S
authors.initials: S
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Ozaki
authors.forename: M
authors.initials: M
authors.lastname: Katayama
authors.forename: Y
authors.initials: Y
authors.lastname: Naruki
authors.forename: S
authors.initials: S
authors.lastname: Otsuka
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000556:secondary; D004452:Echocardiography; D004562:Electrocardiography; D005710:Gallium Radioisotopes; D006338:Heart Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging* / Q000556:secondary*; D006801:Humans; D008113:Liver Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D010833:Phytic Acid; D011877:Radionuclide Imaging; D013927:Thrombosis / Q000000981:diagnostic imaging*
chemical_list: D005710:Gallium Radioisotopes; D015609:Organotechnetium Compounds; C026177:technetium phytate; D010833:Phytic Acid