Wednesday 30 November 2011

Temporal bone rule 16 : Inner ear dysplasia

Two anomalies:
1-Michel Anomaly:
-Total aplasia of the inner ear---No inner ear.


2-Mondini Anomaly:
-A range of morphologic anomalies of cochlea.
-Normally, cochlea has two and half turns, in this anomaly
  the cochlea is enlarged to be one cavity, or just the two and
  half turns are enlarged, both are Mondini anomaly.


Enlarged cochlea in Mondini syndrome(black arrow) while white arrow represent dilated vestibule

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