PT  - JOURNAL ARTICLE
AU  - Jacob, R.
AU  - Gupta, S.
AU  - Isaacson, B.
AU  - Kutz, J.W.
AU  - Roland, P.
AU  - Xi, Y.
AU  - Booth, T.N.
TI  - High-Resolution CT Findings in Children with a Normal Pinna or Grade I Microtia and Unilateral Mild Stenosis of the External Auditory Canal
AID  - 10.3174/ajnr.A4067
DP  - 2015 Jan 01
TA  - American Journal of Neuroradiology
PG  - 176--180
VI  - 36
IP  - 1
4099  - http://www.ajnr.org/content/36/1/176.short
4100  - http://www.ajnr.org/content/36/1/176.full
SO  - Am. J. Neuroradiol.2015 Jan 01; 36
AB  - SUMMARY: A subset of patients presents with unilateral conductive hearing loss, a normal pinna or grade I microtia, and mild external auditory canal stenosis. The physical findings of microtia and a small external canal are commonly absent or subtle in this group of patients, who are being commonly referred for imaging to evaluate isolated conductive hearing loss. We present a case series of patients with unilateral conductive hearing loss and characteristic ossicular abnormalities, commonly anterior fixation of the malleus. All patients had a significantly increased distance from the cochlear promontory to the handle of the malleus and an abnormal incudostapedial angle, indicative of an abnormal ossicular position and/or morphology. Successful surgical reconstruction of the ossicular chain was attempted and accomplished in 3 patients. CHLconductive hearing lossEACexternal auditory canalHRCThigh-resolution CT