External auditory canal exostoses
External
auditory canal exostoses • Exostoses of the external auditory canal - Ganzer Fall bei Radiopaedia
External
auditory canal exostoses • External auditory canal exostoses - surfer's ear - Ganzer Fall bei Radiopaedia
External
auditory canal exostoses • Surfer's ear - Ganzer Fall bei Radiopaedia
External
auditory canal exostoses • Exostosis of the external auditory canal - Surfer's ear - Ganzer Fall bei Radiopaedia
External and
middle ear diseases: radiological diagnosis based on clinical signs and symptoms. Surfer’s ear. Axial CT scan demonstrates broad-based overgrowth of osseous EAC (arrows)
External and
middle ear diseases: radiological diagnosis based on clinical signs and symptoms. Surfer’s ear. Coronal CT scan shows benign appearing bone expansion, significantly narrowing EAC (arrow)
Exostosis of the external auditory canal (also known as surfer's ear), is a benign bony overgrowth of the bony external auditory canal brought about by exposure to cold wind and water combined.
Radiographic features
- broad-based or more focal circumferential bony overgrowth of the osseous external auditory canal
- bilateral
Differential diagnosis
- external auditory canal osteoma: unilateral focal, pedunculated bony overgrowth
- external auditory canal cholesteatoma: typically unilateral bony flakes with scalloping of the adjacent bone
See also
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Gehörgangsexostose: