Neurosurgeon Paulius Čikotas consults patients, suffering with oncological encephalon (meningiomata, glial and metastatic tumours, adenomas of the hypophysis, cranial nerve neurinomas), brain and precerebral vessel disorders (arterial cerebral aneurysms, arterial – venous malformations, cerebral cavernomas, connections between carotid artery and cavernous sinus, cerebral ischaemic and haemorraghic strokes), hydrocephalus, various pathologies of the spinal column.