During routine activities in the laboratory, a calcified segment of the left internal carotid artery was observed in a caucasian cadaver skull. The calcification extends from the cerebral segment to the cavernous segment of the internal carotid artery. Some important diseases seems to be related with calcification of the internal carotid artery, thus, the present study shall be important for health sciences and those who keep some interest in pathologies associated with calcifications.