title: Two cases with hepatic amyloidosis suspected of having primary sclerosing cholangitis.
abstract: Sclerogenic biliary changes in hepatic amyloidosis are seldom observed. Here, we report two recent cases initially suspected as primary sclerosing cholangitis (PSC), which were later diagnosed as hepatic amyloidosis (AL type). Case 1: On the basis of magnetic resonance cholangiopancreatography (MRCP) findings, PSC was suspected in a 41-year-old woman with jaundice. Computed tomography (CT) showed nodular pulmonary lesions and swollen cervical, mediastinal and para-aortic lymph nodes, the cause of which was unknown despite detailed examinations. Because of rapid deterioration in the patient's liver function, living donor liver transplantation was performed. She was then diagnosed with hepatic amyloidosis, but died of heart failure due to cardiac amyloidosis 74 days after surgery. Case 2: On the basis of MRCP findings, PSC was suspected in a 49-year-old woman with jaundice. CT showed multiple cystic pulmonary lesions, and hypogammaglobulinemia was also observed (immunoglobulin G, 481 mg/dL). After a biliary plastic stent was placed, liver and lung biopsy confirmed the presence of amyloid deposition. These two cases indicate that it is important to consider hepatic amyloidosis as a differential diagnosis of PSC. The presence of atypical extrahepatic lesions may be useful clues for confirming the diagnosis.
authors.affiliation: Department of Gastroenterology, The University of Tokyo, Tokyo, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Hirano
authors.forename: Masako
authors.initials: M
authors.lastname: Ikemura
authors.forename: Suguru
authors.initials: S
authors.lastname: Mizuno
authors.forename: Minoru
authors.initials: M
authors.lastname: Tada
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Isayama
authors.forename: Takeo
authors.initials: T
authors.lastname: Watanabe
authors.forename: Tomotaka
authors.initials: T
authors.lastname: Saito
authors.forename: Shuhei
authors.initials: S
authors.lastname: Kawahata
authors.forename: Rie
authors.initials: R
authors.lastname: Uchino
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Hamada
authors.forename: Koji
authors.initials: K
authors.lastname: Miyabayashi
authors.forename: Takashi
authors.initials: T
authors.lastname: Sasaki
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kogure
authors.forename: Natsuyo
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Naoki
authors.initials: N
authors.lastname: Sasahira
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Koike
authors.forename: Masashi
authors.initials: M
authors.lastname: Fukayama
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Sugawara
authors.forename: Norihiro
authors.initials: N
authors.lastname: Kokudo
keywords: amyloidosis; autoimmune pancreatitis; liver biopsy; primary sclerosing cholangitis