A variable expression of MGB-2 was observed among different tumor histotypes: the protein was undetectable in most of the serous tumors (44 out of 54, 81%) independently from their primary or metastatic origin, as well as in mucinous (2 out of 3, 67%) and undifferentiated adenocarcinomas (4 out of 5, 80%). The gene discussed is SCGB2A1; the disease is neoplasm.