title: Small hepatocellular carcinoma visualized with technetium-99m(Sn)-N-pyridoxyl-5-methyltryptophan.
abstract: We report a case of small hepatocellular carcinoma depicted by 99mTc-PMT scintigraphy. On the X-ray computed tomogram there was no visualization of a SOL in the liver. Ultrasonography showed a hyperechoic mass of less than 2 cm in diameter in the left lateral segment of the liver. In the image obtained at 3 hr after 99mTc-PMT injection there was an area of markedly increased activity. When the surgery, left lateral segmentectomy of the liver, was performed more than 2 months later, the tumor had enlarged to 2.5 x 2.0 x 1.5 cm in size. 99mTc-PMT may prove to be useful for scintigraphic localization of small hepatocellular carcinoma.
authors.affiliation: Department of Radiology, Hyogo Medical Center for Adults, Akashi, Japan.
authors.forename: I
authors.initials: I
authors.lastname: Narabayashi
authors.forename: T
authors.initials: T
authors.lastname: Hamada
authors.forename: O
authors.initials: O
authors.lastname: Aoki
authors.forename: T
authors.initials: T
authors.lastname: Suematsu
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging*; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D011877:Radionuclide Imaging; D014364:Tryptophan / Q000031:analogs & derivatives*
chemical_list: D015609:Organotechnetium Compounds; C034836:technetium Tc 99m (Sn)-N-pyridoxyl-5-methyltryptophan; D014364:Tryptophan