Prikazana su dva rjeđa slučaja bolesti ekstrakranijskih karotidnih arterija s osvrtom na način kirurškog liječenja. Radi se o zavojitosti (engl. coiling) unutarnje karotidne arterije (ACI). Oba su bolesnika podvrgnuta uspješnom kirurškom liječenju. U prvom slučaju opisana je simptomatska kombinacija presavinuća (engl. kinking) i zavojitosti ipsilateralne ACI, bez prateće stenoze ACI, a učinjena je resekcija ACI, uz reanastomozu. Druga je bolesnica imala dvostruku zavojitost ACI, odnosno ACI je formirala dvostruku petlju, uz subtotalnu simptomatsku stenozu početnog segmenta ACI. Pri operaciji je učinjena resekcija produženog segmenta, koja je uključivala i područje stenoze ACI, uz naknadnu reanastomozu. S obzirom na rijetkost navedenih bolesti karotidnih arterija i činjenice da dosada u literaturi nisu objavljene veće studije osim opisa pojedinačnih slučajeva, svako dodatno iskustvo i prikaz liječenja doprinijet će daljnjem razumijevanju i smjernicama u liječenju ovih rijetkih bolesti.Abnormalities of the internal carotid arteries (ACI) are rare findings, usually not linked with neurologic symptoms and frequently are diagnosed during routine duplex scanning or angiographic examination. These abnormalities are predominantly elongation of the vessel that leads to kinking, coiling or tortuosity of the artery, and the origin is congenital or acquired related to atherosclerosis. We report on two symptomatic cases related to elongation of ACI. The first case was a 56-year-old female that had bilateral coiling. The second patient was a 64-year-old female that suffered from symptomatic double coiling of the left ACI connected with high grade stenosis. In both cases, successful operation was done with resection of the elongated and stenosed ACI segment and reanastomosis of the ACI and common carotid artery. Postoperatively, symptoms were resolved. In symptomatic cases of isolated carotid elongations, surgical treatment is a better option than conservative medical treatment alone, whilst in asymptomatic ACI elongation, conservative medical treatment is advised
