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Difference between revisions of "Ditzels"
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+cholesteatoma
(→Ditzels: +cholesteatoma) |
(+cholesteatoma) |
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Features: | Features: | ||
*Benign fibrous tissue. | *Benign fibrous tissue. | ||
==Cholesteatoma== | |||
===General=== | |||
*Squamous epithelium in the middle ear - leading to accumulation of keratinaceous debris.<ref>URL: [http://www.harrisonspractice.com/practice/ub/view/Harrisons%20Practice/141015/all/otitis_media_and_mastoiditis http://www.harrisonspractice.com/practice/ub/view/Harrisons%20Practice/141015/all/otitis_media_and_mastoiditis]. Accessed on: 16 March 2011.</ref> | |||
===Microscopic=== | |||
Features:<ref>{{cite journal |author=Iino Y, Toriyama M, Ohmi S, Kanegasaki S |title=Activation of peritoneal macrophages with human cholesteatoma debris and alpha-keratin |journal=Acta Otolaryngol. |volume=109 |issue=5-6 |pages=444–9 |year=1990 |pmid=1694387 |doi= |url=}}</ref> | |||
*Keratinaceous debris - '''key feature'''. | |||
*Squamous epithelium. | |||
*Macrophages +/- giant cell (containing keratinceous debris). | |||
*Chronic inflammation (lymphocytes). | |||
==See also== | ==See also== | ||