title: A case of lamivudine-sensitive de novo acute hepatitis B induced by rituximab with the CHOP regimen for diffuse large B cell lymphoma.
abstract: A case of de novo acute hepatitis B that showed symptoms of general malaise and anorexia during rituximab therapy with the CHOP regimen for diffuse large B cell lymphoma is reported. Lamivudine was strikingly effective, showing a rapid recovery from liver damage with jaundice. Hepatitis B virus (HBV) DNA in serum became and stayed undetectable even after the withdrawal of lamivudine, although HBsAg remained positive over 42 months from the onset. Liver biopsy showed a picture suggestive of acute viral hepatitis with multinucleated giant hepatocytes and CD38-positive plasma cell infiltration into liver parenchyma. Immunohistochemically, CD3-positive T-cells were predominant cells that infiltrated in liver parenchyma, whereas CD20-positive B cells were essentially null. Hence, it is suggested from these findings that B lymphocytes might be crucial for the continuous latency in HBV infection and may give rise to de novo acute hepatitis B if totally deleted. Moreover, the CHOP regimen might have some additive effects with the repeated on-off use of corticosteroids to the onset of the disease. In addition, significance of plasma cell infiltration in this setting is discussed.
authors: Division of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Senshu, Nagaoka, Niigata, 940-2085, Japan, torutoru@nagaoka.jrc.or.jp.
authors: Toru
authors: T
authors: Takahashi
authors: Tadashi
authors: T
authors: Koike
authors: Shigeo
authors: S
authors: Hashimoto
authors: Tomofumi
authors: T
authors: Miura
authors: Junichiro
authors: J
authors: Nakamura
authors: Satoshi
authors: S
authors: Yamada
authors: Tsutomu
authors: T
authors: Miura
authors: Masahiko
authors: M
authors: Yanagi
authors: Kazuhide
authors: K
authors: Yamazaki
authors: Shogo
authors: S
authors: Okoshi
authors: Yutaka
authors: Y
authors: Aoyagi