Where Is the Primary Site of the Extra-Axial Chordoma Masquerading As Lung Cancer?

Multiple benign notochordal cell tumors in lung with cystic change

“…Kikuchi et al. suggested that the previous some cases were possible to be actually not pulmonary chordomas but BNCTs [ 12 , 13 ]. Unlike axial BNCTs, pulmonary BNCTs are often accompanied by mucous retention and show cystic change, and these findings could be useful for differentiating BNCTs from chordomas.…”