hypoplastische Mastoidzellen

Neuroimaging

assessment in Down syndrome: a pictorial review. Axial reconstruction of a temporal bone CT, at the level of the ossicular chain, of a 36-year-old Down syndrome patient demonstrating hypopneumatization of the mastoid and signs of left middle chronic otitis, with an erosion of the ossicular chain, namely the stapes

Treacher

Collins Syndrome. Computed Tomography axial section bone window showing hypoplastic and non-pneumatized mastoid cavities bilaterally. There is deviation of the nasal septum towards the right side.