BACKGROUND/AIM The mastoid is the rarest site for the onset of congenital cholesteatoma (CC). The symptoms are atypical and minimal. The aim of this multicenter retrospective descriptive study was to define this extremely rare condition and its clinical presentation, diagnosis and management. METHODS We analyzed data files for a 15-year period in 4 tertiary otology centers and discovered 6 pa...

the aims of surgical treatment for cholesteatoma include complete removal of disease and formation of a dry, self cleaning ear in addition to hearing reconstruction. this presentation concentrates on techniques of open mastoid surgery or modified radical mastoidectomy to achieve a well-constructed cavity. this study analyzes both primary and revision mastoid surgery referred to the author. all ...

The aim of this study is to evaluate the use of our nano-HA/PCL composite 3D scaffolds as graft materials for mastoid cavity obliteration in an animal model. Nano-HA particles were synthesized by chemical precipitation technique and mixed them with PCL solution to make composite paste. 3D scaffolds were fabricated by a paste extruding deposition process. The nano-HA/PCL 3D scaffolds showed good...

Sound pressure levels in the external auditory canals of 50 subjects were measured at 2000 and 4000 Hz with a bone-conduction vibrator on the forehead, the mastoid ipsilateral to the probe microphone, and the mastoid contralateral to the probe microphone. A plug was placed in the external auditory canal to minimize sound pressure levels in the external auditory canal produced by the osseotympan...

The mastoid cavity after ''debridement" becomes one of the main causes of failure in the follow-up of tympanoplasty when left unobliterated. Various trials have been made to seek an effective method of filling up the cavity. We conducted a study on mastoidplasty using autogenous bonemarrow and free skingraft and found the results were satisfactory. 15 patients were observed clinically, histolog...

Routine cranial ultrasonography, using the anterior fontanelle as acoustic window enables visualization of the supratentorial brain structures in neonates and young infants. The mastoid fontanelle enables a better view of the infratentorial structures, especially cerebellar hemorrhage in preterm infants. Reports on the usefulness and reliability of cranial ultrasonography using the mastoid font...

DURING the past 20 years there have been numerous changes in our approach to mastoid surgery. New procedures have been evolved, and old ones discarded or sometimes revived. In our present state of knowledge, three principles govern our approach to surgery of chronic ear and mastoid suppuration. Firstly, all disease and especially all cholesteatoma, must be eradicated at operation. As a corollar...