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Terracciano, L.M. et al.

Terracciano, Tornillo, Avoledo, Von Schweinitz, Kühne, Bruder,

Fibrolamellar hepatocellular carcinoma occurring 5 years after hepatocellular adenoma in a 14-year-old girl: a case report with comparative genomic hybridization analysis.

An unusual case of fibrolamellar carcinoma of the liver developed 5 years after removal of a hepatocellular adenoma in a 14-year-old girl belonging to a family with Carney syndrome. Both tumors were studied by light and electron microscopy, flow cytometry, and comparative genomic hybridization. The first tumor, removed at the age of 9, was a bulky well-circumscribed liver mass composed of large eosinophilic cells with a focal pseudoglandular pattern but without cytologic atypia or sclerosis. A diagnosis of hepatocellular adenoma was rendered. Five years later, another hepatic tumor was removed from the right lobe. Microscopic examination revealed polygonal cells, each with a large amount of eosinophilic cytoplasm and a round nucleus with a conspicuous nucleolus. These cells were arranged in nests and strands and separated by bands of dense fibrous tissue, leading to a diagnosis of fibrolamellar carcinoma. Comparative genomic hybridization analysis revealed no genetic alteration in the adenoma; however, several chromosomal aberrations (loss of chromosome regions 1p and 4p and gains of chromosome regions 6q, 13q, and Xq) were detected in the fibrolamellar carcinoma. To our knowledge, this is the first report of an association between hepatocellular adenoma and fibrolamellar carcinoma.[1]

References

Fibrolamellar hepatocellular carcinoma occurring 5 years after hepatocellular adenoma in a 14-year-old girl: a case report with comparative genomic hybridization analysis. Terracciano, L.M., Tornillo, L., Avoledo, P., Von Schweinitz, D., Kühne, T., Bruder, E. Arch. Pathol. Lab. Med. (2004) [Pubmed]

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