Acta Medica Medianae
Vol. 39
No 3, 2000
UDK 61
YU ISSN 0365-4478
Contact:
Dragoslava ĐERIĆ
Institute for
Otorhinolaryngology and Maxillofacial Surgery
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CONGENITAL
MALFORMATIONS OF THE EXTERNAL AND MIDDLE EAR: COMPUTERIZED TOMOGRAPHIC
CLASSIFICATION
Dragoslava ĐERIĆ, Anđa JAŠOVIĆ, Nenad ARSOVIĆ
and Miodrag DINIĆ
Institute for
Otorhinolaryngology and Maxillofacial Surgery and
Institute for Radiology and Oncology of the Clinic center, Belgrade and
Otorhinolaryngological Department of the Military Hospital, Niš
The authors used the high-resolution computerized tomography (HRCT) for
examining 52 congenital malformed ears in 45 children between 5 and 10
years of age. In six children the congenital malformations were
bilateral. From the clinic aspect, the malformations were manifested as
microtia, atresia of the external auditory channel and conductive
hearing loss.
In analyzing the anatomic details and pathological changes on the CT
sections the authors found three groups of malformations. In the first
group the auditory ossicles were almost always malformed; in the second
group, beside the deformed auditory ossicles in almost all the cases
there was apneumatized mastoid found while in the third group the
auditory ossicles were malformed, the mastoids were apneumatized and in
more than half of the cases the cavum timpani was malformed or filled
with mesenchyme.
These characteristics are of great importance in the surgical
reconstruction of the congenital ear's malformations.
Key words: Congenital malformations, external and middle ear,
classification
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