Peculiar nuclear atypia associated with MDM2 gene amplification in carcinoma ex-pleomorphic adenoma harbouring an alteration of HMGA2

Ziyad Alsugair, Maxime Fieux, Françoise Descotes, Jonathan Lopez, Carolle Cordonnier, Juliette Russel, Anne Champagnac, Daniel Pissaloux, Philippe Céruse, Pierre Philouze, Nazim Benzerdjeb