Other notochordal lesions include notochordal vestiges of the intervertebral disk and ecchordosis physaliphora (EP).
These were first described as an autopsy finding in 1982 and documented with the name of ecchordosis physaliphora vertebralis.
Ecchordosis physaliphora are ectopic, extraosseous notochordal lesions of embryologic origin, similar to notochordal vestiges of the intervertebral disk.
Benign notochordal cell tumor, chordomas, notochordal vestiges of the intervertebral disk, and ecchordosis physaliphora are all lesions of notochordal origin that share similar histologic and immunohistochemical characteristics.
A rare symptomatic presentation of ecchordosis physaliphora and unique endoscope-assisted surgical management.