A Practical Guide to Microtia Scoring: Step-by-Step.

Radiologists play an important role in identifying anatomical abnormalities on temporal bone CT imaging in patients with microtia. This anatomical detail aids in identifying surgical candidates based on the Jahrsdoerfer score. Here, we review the temporal bone anatomy and pathology as it relates to the Jahrsdoerfer score to help radiologists in issuing accurate scoring for use in surgical decision-making. In this paper, we review the temporal bone anatomy and pathology as it relates to the Jahrsdoerfer score in order to help radiologists to methodically and accurately score temporal bone CTs accurately for use in surgical decision-making.ABBREVIATIONS: OW = oval window, MES = middle ear space, MIC = malleus-incus complex, ISJ = incudostapedial joint, RW = round window, EAC = External Auditory Canal FN = Facial Nerve.