Figure 4

CT analysis of a young male’s skull from circa XVIth century. Panel a. shows a lateral photograph of the skull, with visible enlarged type 3 EOP (arrows). Panel b. shows a lateral VR view of the skull with corresponding EOP (arrows). Panel c. shows EOP measurement (2.88 cm3), which corresponds to the 73rd percentile of 2019 values for young men with EOP enlargement.