title: Mirror-image artifact mimicking epidural hematoma: usefulness of power Doppler sonography.
abstract: During sonographic examination, a mirror-like interface can scatter the ultrasound beam, producing mirror-image artifacts. We describe a case of bilateral parietal cephalhematoma in the parietal region of a 2-day-old neonate that mimicked bilateral epidural hematoma on routine sonographic examination. Forceps had been used during delivery, and the neonate had been experiencing episodes of apnea since birth. Gray-scale coronal sonograms showed anechoic structures resembling epidural hematomas in the left and right parietal regions. However, color and power Doppler sonography showed normal vascular findings, thus permitting identification of the mirror-image artifact.
authors.affiliation: Department of Radiology, Dokuz Eylül University Medical School, Inciralti, 35600 Izmir, Turkey.
authors.forename: Handan
authors.initials: H
authors.lastname: Cakmakci
authors.forename: Aytac
authors.initials: A
authors.lastname: Gulcu
authors.forename: M Noyan
authors.initials: MN
authors.lastname: Zenger
mesh_terms: D016477:Artifacts; D001720:Birth Injuries / Q000000981:diagnostic imaging; D006259:Craniocerebral Trauma / Q000000981:diagnostic imaging / Q000209:etiology; D003937:Diagnosis, Differential; D004453:Echoencephalography; D006406:Hematoma / Q000000981:diagnostic imaging / Q000209:etiology; D006407:Hematoma, Epidural, Cranial / Q000000981:diagnostic imaging*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009772:Obstetrical Forceps / Q000009:adverse effects; D018608:Ultrasonography, Doppler