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SALL4 is a marker of the embryonal subtype of hepatoblastoma

Aims SALL4 is a marker of germ cell tumours. The aim of this study was to investigate SALL4 expression in blastemal tumours, particularly in hepatoblastoma. Methods and results The study included 12 hepatoblastomas. Eight hepatoblastomas were pure epithelial tumours, and four were mixed epithelial a...

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Bibliographic Details
Published in:Histopathology 2013-09, Vol.63 (3), p.425-428
Main Authors: Gnemmi, Viviane, Leteurtre, Emmanuelle, Sudour-Bonnange, Hélène, Devisme, Louise, Guettier, Catherine, Buob, David, Leroy, Xavier
Format: Article
Language:English
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Summary:Aims SALL4 is a marker of germ cell tumours. The aim of this study was to investigate SALL4 expression in blastemal tumours, particularly in hepatoblastoma. Methods and results The study included 12 hepatoblastomas. Eight hepatoblastomas were pure epithelial tumours, and four were mixed epithelial and mesenchymal tumours. The patients were nine males and three females with a mean age of 14.6 months. Immunohistochemistry was performed with an antibody against SALL4, using an automated immunostainer. Seven of 12 hepatoblastomas showed nuclear staining only in the embryonal component. Fetal and mesenchymal components were negative. Conclusions SALL4 is expressed in blastemal tumours, particularly in the embryonal subtype of hepatoblastoma. Pathologists need to be aware of such expression so that misdiagnosis can be avoided.
ISSN:0309-0167
1365-2559
DOI:10.1111/his.12187