title: Mixed hepatoblastoma in an adult--a case report and literature review.
abstract: Hepatoblastoma is thought to originate from embryonal hepatic tissue, and most of these tumors occur in children under the age of 2 years. Hepatoblastoma in adults is extremely rare, and the prognosis is much worse than the mixed hepatoblastoma of childhood. We experienced a case of mixed hepatoblastoma in a 51 year old female patient. She had been suffering from a mild pain and a palpable lump in the epigastric area. Serum AFP was 43,850 ng/ml. Computerized tomography and selective abdominal angiography showed a large low-density mass. With a suspicion of hepatocellular carcinoma of the left lobe, a left lateral segmentectomy was performed. The external surface showed a huge protruding mass and the capsule was previously ruptured. On section, the tumor was a 11 x 7 cm sized expanding mass which had a variegated surface composed of yellow-white friable tissue with multifocal hemorrhagic areas. Microscopic examination revealed a tumor consisted of epithelial and mesenchymal elements. The mesenchymal cells were spindle in shape and proliferated over the whole tumor with focal osteosarcomatous differentiation. The epithelial components showed well-differentiated hepatocellular carcinoma-like areas, poorly differentiated acinar or tubular structures.
authors.affiliation: Department of Pathology, Pochon CHA University, Pundang CHA General Hospital, Sungnam, Korea.
authors.forename: H J
authors.initials: HJ
authors.lastname: Ahn
authors.forename: K W
authors.initials: KW
authors.lastname: Kwon
authors.forename: Y J
authors.initials: YJ
authors.lastname: Choi
authors.forename: H J
authors.initials: HJ
authors.lastname: Kim
authors.forename: S P
authors.initials: SP
authors.lastname: Hong
authors.forename: D
authors.initials: D
authors.lastname: Oh
authors.forename: J S
authors.initials: JS
authors.lastname: Chung
mesh_terms: D005260:Female; D018197:Hepatoblastoma / Q000175:diagnosis*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed