Microtia: grade III

Case contributed by Dr Ian Bickle

Presentation

Ear deformity from birth.

Patient Data

Age: 7 years
Gender: Male
Modality: CT
Microtia - a vestigal left pinna. In addition the external auditory canal is absent and there are no ossicles in the middle ear.
Modality: CT
Costal cartilage well illustrated with a 'pinna' planned annotated from the images.

Case Discussion

Microtia is a congenital deformity of the pinna, which has a wide spectrum of abnormality.

Microtia is graded from I - IV. In grade II there is an absence of the external ear with a small peanut like vestige structure and an absence of the external ear canal and ear drum.

As in this case it is common (close to 50%) to have an absense of the ossicles of the middle ear.

Surgical recontruction may be either allographic - usually with the use of costal cartilage or alloplastic.

The commonest procedures (or modifications of) are the Brent and Nagata, which involve several steps.

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Case Information

rID: 23600
Case created: 27th Jun 2013
Last edited: 26th Feb 2016
Inclusion in quiz mode: Included

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