Nose, Turbinate - Hyperostosis
comment:Hyperostosis is an increase in the amount of bone resulting in a thickened anatomic structure ( Figure 1 , Figure 2 , Figure 3 , and Figure 4 ). Hyperostosis may be a systemic condition, and thickening of the bones of the skull may also be present. In the nose, it is often associated with atrophy of the nasal mucosa and is more commonly seen in turbinate bone, but it also occurs in the nasal septum ( Figure 3 ). The proposed pathogenesis involves decreased bone resorption due to impaired osteoclast function. In some cases, there may be atrophy of some turbinates and hyperostosis of others ( Figure 4 ).
recommendation:Hyperostosis should be diagnosed whenever present and assigned a severity grade. All accompanying lesions, such as inflammation, turbinate atrophy, and olfactory epithelial atrophy, should be diagnosed separately.
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