The epidermoid formation (Michaels' structure) in the developing middle ear

R G Wang, M Hawke, P Kwok
Journal of Otolaryngology 1987, 16 (6): 327-30
The presence of an epidermoid-like formation located in the mucosa of the anterosuperior quadrant of the lateral wall of the developing middle ear was first described by Michaels in 1986. In a review of 41 middle ears from 20 serially sectioned fetus heads and one fetus temporal bone from our collection, six epidermoid formations were identified. Our study confirms the existence of this formation which we have decided to name Michaels' structure after Professor Leslie Michaels, the discoverer of this structure. The reasons for the different incidence of its occurrence in our series when compared to Michaels' original report, and the possible significance of Michaels' structure in the pathogenesis of congenital cholesteatoma of the middle ear are discussed.


You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Available on the App Store

Available on the Play Store
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"