title: An important clue in the sonographic diagnosis of internal carotid artery agenesis: ipsilateral common carotid artery hypoplasia.
abstract: A 42-year-old female patient, who had been diagnosed with an occlusion of her left internal carotid artery (ICA) following Doppler ultrasonographic (US) and digitally-subtracted angiographic (DSA) examinations performed in an outer healthcare center in order to eliminate the underlying cause of her complaint of amorosis fugax, later applied to our hospital with the same complaint. At Doppler US performed in our hospital's radiology department, her right common carotid artery (CCA) was normal, but her left CCA was hypoplastic. The right internal artery (ICA) was validated as normal. At the left side, however, the ICA was apparent only as a stump and it did not demonstrate a continuity. The diagnosis of ICA agenesis was confirmed by the utilization of Doppler US, CT, and DSA imaging, and it was concluded also that ipsilateral CCA hypoplasia could be evaluated as an important clue to the diagnosis of ICA agenesis.
authors.affiliation: Department of Radiology, Adana Numune Teaching and Research Hospital, 01240 Adana, Turkey.
authors.forename: Omer
authors.initials: O
authors.lastname: Kaya
authors.affiliation: Department of Radiology, Adana Numune Teaching and Research Hospital, 01240 Adana, Turkey.
authors.forename: Cengiz
authors.initials: C
authors.lastname: Yilmaz
authors.affiliation: Department of Radiology, Namik Kemal University, 59100 Tekirdag, Turkey.
authors.forename: Bozkurt
authors.initials: B
authors.lastname: Gulek
authors.affiliation: Department of Radiology, Adana Numune Teaching and Research Hospital, 01240 Adana, Turkey.
authors.forename: Gokhan
authors.initials: G
authors.lastname: Soker
authors.affiliation: Department of Radiology, School of Medicine, Cukurova University, 01330 Adana, Turkey.
authors.forename: Gokalp
authors.initials: G
authors.lastname: Cikman
authors.affiliation: Department of Radiology, Medeniyet University, Goztepe Teaching and Research Hospital, 34730 Istanbul, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Inan
authors.affiliation: Department of Ophthalmology, Adana Numune Teaching and Research Hospital, 01240 Adana, Turkey.
authors.forename: Selahaddin
authors.initials: S
authors.lastname: Demirduzen
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