MUC6 and endocervical adenocarcinoma: It has been demonstrated that this morphologically defined variant of endocervical adenocarcinoma invariably shows a gastric immunophenotype: positive for HIK1083 (mouse monoclonal; KantoKagaku, Tokyo, Japan) and/or MUC6 expression (mouse monoclonal, CLH5; Novocastra Laboratories, Newcastle, UK).