<unk>  is a thin, radiolucent line seen across the neck of a gastric ulcer filled with barium sulphate during a barium meal. It is a sign of mucosal edema. It is named after Aubrey Otis<unk> .
Hampton's line
Burton's line
Schwalbe's line
Hilgenreiner's line
Blumensaat's line
Dandy's point
Klein's line
McBurney's point