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Malignant hepatic tumor occurring 10 yrs after a histocompatible sibling donor bone marrow transplantation for severe aplastic anemia
Author(s) -
Ishimura Masataka,
Ohga Shouichi,
Nagatoshi Yoshihisa,
Okamura Jun,
Tajiri Tatsuro,
Kohashi Kenichi,
Oda Yoshinao,
Takada Hidetoshi,
Hara Toshiro
Publication year - 2007
Publication title -
pediatric transplantation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.457
H-Index - 69
eISSN - 1399-3046
pISSN - 1397-3142
DOI - 10.1111/j.1399-3046.2007.00802.x
Subject(s) - medicine , hepatoblastoma , aplastic anemia , malignancy , cyclophosphamide , bone marrow failure , anemia , hepatocellular carcinoma , gastroenterology , hepatitis , bone marrow , immunology , haematopoiesis , chemotherapy , stem cell , biology , genetics
A 13‐yr‐old boy developed post‐transplant liver tumor. At three yrs of age, this patient underwent a histocompatible sibling donor BMT for severe aplastic anemia, after a conditioning with antithymocyte globulin and cyclophosphamide. He became a HBV carrier after BMT. Stable mixed chimerism and mild thrombocytopenia, but no active hepatitis continued. At age 13, abdominal pain was a sign of massive tumor. Extremely high levels of α‐fetoprotein indicated the clinical diagnosis of hepatoblastoma that might be the first report as post‐BMT malignancy. The necropsy specimens revealed that the tumor was recipient cell‐origin and showed the histopathological features of both hepatoblastoma and hepatocellular carcinoma. Prolonged mixed chimerism and hepatitis virus infection might induce a rare oncogenesis after non‐irradiated conditioning.