An autopsy case of cholangiocellular carcinoma with metastasis in the skull and pituitary gland through the vertebral venous system - TAKESHITA, Atsushi; NARIYAMA, Katashi; OGAWA, Ryusuke; FUKUNISHI, Keiichi; KURISU, Yoshitaka; NONOGUCHI, Naosuke; MATSUMIYA, Teisuke; EGASHIRA, Yutaro; SHIBAYAMA, Yuro; KUROKAWA, Teruo (Kanzo, 1999)