Ovarian mucinous carcinoma contains mucus-scarce cells with marked nuclear pleomorphism [17] and occasionally harbors a TP53 mutation [18, 19], whereas seromucinous carcinoma usually shows endometrioid carcinoma-like morphology and wild-type p53 immunophenotype [20]. The gene discussed is TP53; the disease is ovarian mucinous adenocarcinoma.