“…The asym nabry is often more marked posteriorlv due to the more frequent posterior localisation of the brain lesion, In most cases therefore the asymmetry is bast shown in the half-axial view taken in the supine position (the tube is tilted 30-----35 degrees cranially). This sign was noted in one case by GREEN, FOSTER and BERENS (7), was present in the radiograms but not commented on in the case of HEUBLEIN, PENDERGRASS and WIDMANN (8), and was reported only as clinical sign in the one case of MONIZ and LIMA (13). In our opinion it merits more attention.…”