Presentation
Ear deformity from birth.
Patient Data
Microtia - a vestigal left pinna. In addition the external auditory canal is absent and there are no ossicles in the middle ear.
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 III 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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