TNF-R2 expression in acquired middle ear cholesteatoma.

Comparative assessment between objective and subjective methods in slides stained by immunohistochemistry.

UNLABELLED Objective methods of assessment are often required in scientific studies. Histological tests with immunohistochemical staining can be assessed by photometry. OBJECTIVE To compare this objective method with the subjective evaluation performed by three independent examiners, using slides of acquired middle ear cholesteatomas. METHOD We selected a total of 54 cholesteatoma images, i...

The role of Tumor Necrosis Factor -Alpha (TNF-α) in bone resorption present in middle ear cholesteatoma Summary

Single-shot, turbo spin-echo, diffusion-weighted imaging versus spin-echo-planar, diffusion-weighted imaging in the detection of acquired middle ear cholesteatoma.

Diagnosis of acquired middle ear cholesteatoma on MR imaging is mostly done on late postgadolinium T1-weighted MR images and/or echo-planar (EPI) diffusion-weighted (DWI) MR images. We describe the appearance of a case of a complicated attical middle ear cholesteatoma on single-shot (SS) turbo spin-echo (TSE) DWI compared with EPI-DWI. This case suggests a higher reliability of SS TSE-DWI in th...

[Molecular control of bone resorption in chronic otitis media with cholesteatoma].

UNLABELLED Bone destruction in chronic otitis media with cholesteatoma is a common phenomenon. Expanding growth of cholesteatoma in the middle ear causes ischemia of the mucosa and bones with granulation tissue production. THE AIM OF THIS STUDY was to assess the expression and distribution of the key regulators of bone destruction: osteoprotegerin (OPG), Receptor Activator for Nuclear Factor ...

First Branchial Cleft Fistula Associated with External Auditory Canal Stenosis and Middle Ear Cholesteatoma

Introduction: First branchial cleft anomalies manifest with duplication of the external auditory canal.   Case Report: This report features a rare case of microtia and congenital middle ear and canal cholesteatoma with first branchial fistula. External auditory canal stenosis was complicated by middle ear and external canal cholesteatoma, but branchial fistula, opening in the zygomatic root and...